Homework 2
Hongyu Chen
Saturday, September 27, 2014
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Fuel-efficient Test: Multiple Factor Multiple Level Model
Hongyu Chen
RPI, RIN:661405156
Sep.27 V1.0
1. Setting
System under test
Data of this test is obtained from the ‘fueleconomy’ dataset. The aim of this analysis is to test factors that may influence fuel comsumption, therefore help comsumers to make their most economic decision on used vehicle. A quick view of this dataset is as below.
install.packages("fueleconomy", repos='http://cran.us.r-project.org')## Installing package into 'C:/Users/acer1/Documents/R/win-library/3.1'
## (as 'lib' is unspecified)## package 'fueleconomy' successfully unpacked and MD5 sums checked
##
## The downloaded binary packages are in
## C:\Users\acer1\AppData\Local\Temp\RtmpKYPOKn\downloaded_packageslibrary("fueleconomy")
x<-vehicles
head(x)## id make model year class
## 1 27550 AM General DJ Po Vehicle 2WD 1984 Special Purpose Vehicle 2WD
## 2 28426 AM General DJ Po Vehicle 2WD 1984 Special Purpose Vehicle 2WD
## 3 27549 AM General FJ8c Post Office 1984 Special Purpose Vehicle 2WD
## 4 28425 AM General FJ8c Post Office 1984 Special Purpose Vehicle 2WD
## 5 1032 AM General Post Office DJ5 2WD 1985 Special Purpose Vehicle 2WD
## 6 1033 AM General Post Office DJ8 2WD 1985 Special Purpose Vehicle 2WD
## trans drive cyl displ fuel hwy cty
## 1 Automatic 3-spd 2-Wheel Drive 4 2.5 Regular 17 18
## 2 Automatic 3-spd 2-Wheel Drive 4 2.5 Regular 17 18
## 3 Automatic 3-spd 2-Wheel Drive 6 4.2 Regular 13 13
## 4 Automatic 3-spd 2-Wheel Drive 6 4.2 Regular 13 13
## 5 Automatic 3-spd Rear-Wheel Drive 4 2.5 Regular 17 16
## 6 Automatic 3-spd Rear-Wheel Drive 6 4.2 Regular 13 13tail(x)## id make model year class
## 33437 31064 smart fortwo electric drive cabriolet 2011 Two Seaters
## 33438 33305 smart fortwo electric drive convertible 2013 Two Seaters
## 33439 34393 smart fortwo electric drive convertible 2014 Two Seaters
## 33440 31065 smart fortwo electric drive coupe 2011 Two Seaters
## 33441 33306 smart fortwo electric drive coupe 2013 Two Seaters
## 33442 34394 smart fortwo electric drive coupe 2014 Two Seaters
## trans drive cyl displ fuel hwy cty
## 33437 Automatic (A1) Rear-Wheel Drive NA NA Electricity 79 94
## 33438 Automatic (A1) Rear-Wheel Drive NA NA Electricity 93 122
## 33439 Automatic (A1) Rear-Wheel Drive NA NA Electricity 93 122
## 33440 Automatic (A1) Rear-Wheel Drive NA NA Electricity 79 94
## 33441 Automatic (A1) Rear-Wheel Drive NA NA Electricity 93 122
## 33442 Automatic (A1) Rear-Wheel Drive NA NA Electricity 93 122summary(x)## id make model year
## Min. : 1 Length:33442 Length:33442 Min. :1984
## 1st Qu.: 8361 Class :character Class :character 1st Qu.:1991
## Median :16724 Mode :character Mode :character Median :1999
## Mean :17038 Mean :1999
## 3rd Qu.:25265 3rd Qu.:2008
## Max. :34932 Max. :2015
##
## class trans drive cyl
## Length:33442 Length:33442 Length:33442 Min. : 2.00
## Class :character Class :character Class :character 1st Qu.: 4.00
## Mode :character Mode :character Mode :character Median : 6.00
## Mean : 5.77
## 3rd Qu.: 6.00
## Max. :16.00
## NA's :58
## displ fuel hwy cty
## Min. :0.00 Length:33442 Min. : 9.0 Min. : 6.0
## 1st Qu.:2.30 Class :character 1st Qu.: 19.0 1st Qu.: 15.0
## Median :3.00 Mode :character Median : 23.0 Median : 17.0
## Mean :3.35 Mean : 23.6 Mean : 17.5
## 3rd Qu.:4.30 3rd Qu.: 27.0 3rd Qu.: 20.0
## Max. :8.40 Max. :109.0 Max. :138.0
## NA's :57Factors and Levels
Manufacture and year are two different factors set in this study.
make<-factor(x$make)
year<-factor(x$year)
levels(make)## [1] "Acura"
## [2] "Alfa Romeo"
## [3] "AM General"
## [4] "American Motors Corporation"
## [5] "ASC Incorporated"
## [6] "Aston Martin"
## [7] "Audi"
## [8] "Aurora Cars Ltd"
## [9] "Autokraft Limited"
## [10] "Azure Dynamics"
## [11] "Bentley"
## [12] "Bertone"
## [13] "Bill Dovell Motor Car Company"
## [14] "Bitter Gmbh and Co. Kg"
## [15] "BMW"
## [16] "BMW Alpina"
## [17] "Bugatti"
## [18] "Buick"
## [19] "BYD"
## [20] "Cadillac"
## [21] "CCC Engineering"
## [22] "Chevrolet"
## [23] "Chrysler"
## [24] "CODA Automotive"
## [25] "Consulier Industries Inc"
## [26] "CX Automotive"
## [27] "Dabryan Coach Builders Inc"
## [28] "Dacia"
## [29] "Daewoo"
## [30] "Daihatsu"
## [31] "Dodge"
## [32] "E. P. Dutton, Inc."
## [33] "Eagle"
## [34] "Environmental Rsch and Devp Corp"
## [35] "Evans Automobiles"
## [36] "Excalibur Autos"
## [37] "Federal Coach"
## [38] "Ferrari"
## [39] "Fiat"
## [40] "Fisker"
## [41] "Ford"
## [42] "General Motors"
## [43] "Geo"
## [44] "GMC"
## [45] "Goldacre"
## [46] "Grumman Allied Industries"
## [47] "Grumman Olson"
## [48] "Honda"
## [49] "Hummer"
## [50] "Hyundai"
## [51] "Import Foreign Auto Sales Inc"
## [52] "Import Trade Services"
## [53] "Infiniti"
## [54] "Isis Imports Ltd"
## [55] "Isuzu"
## [56] "J.K. Motors"
## [57] "Jaguar"
## [58] "JBA Motorcars, Inc."
## [59] "Jeep"
## [60] "Kia"
## [61] "Laforza Automobile Inc"
## [62] "Lambda Control Systems"
## [63] "Lamborghini"
## [64] "Land Rover"
## [65] "Lexus"
## [66] "Lincoln"
## [67] "London Coach Co Inc"
## [68] "London Taxi"
## [69] "Lotus"
## [70] "Mahindra"
## [71] "Maserati"
## [72] "Maybach"
## [73] "Mazda"
## [74] "Mcevoy Motors"
## [75] "McLaren Automotive"
## [76] "Mercedes-Benz"
## [77] "Mercury"
## [78] "Merkur"
## [79] "MINI"
## [80] "Mitsubishi"
## [81] "Morgan"
## [82] "Nissan"
## [83] "Oldsmobile"
## [84] "Panos"
## [85] "Panoz Auto-Development"
## [86] "Panther Car Company Limited"
## [87] "PAS Inc - GMC"
## [88] "PAS, Inc"
## [89] "Peugeot"
## [90] "Pininfarina"
## [91] "Plymouth"
## [92] "Pontiac"
## [93] "Porsche"
## [94] "Quantum Technologies"
## [95] "Qvale"
## [96] "Ram"
## [97] "Red Shift Ltd."
## [98] "Renault"
## [99] "Rolls-Royce"
## [100] "Roush Performance"
## [101] "Ruf Automobile Gmbh"
## [102] "S and S Coach Company E.p. Dutton"
## [103] "Saab"
## [104] "Saleen"
## [105] "Saleen Performance"
## [106] "Saturn"
## [107] "Scion"
## [108] "Shelby"
## [109] "smart"
## [110] "Spyker"
## [111] "SRT"
## [112] "Sterling"
## [113] "Subaru"
## [114] "Superior Coaches Div E.p. Dutton"
## [115] "Suzuki"
## [116] "Tecstar, LP"
## [117] "Tesla"
## [118] "Texas Coach Company"
## [119] "Toyota"
## [120] "TVR Engineering Ltd"
## [121] "Vector"
## [122] "Vixen Motor Company"
## [123] "Volga Associated Automobile"
## [124] "Volkswagen"
## [125] "Volvo"
## [126] "VPG"
## [127] "Wallace Environmental"
## [128] "Yugo"levels(year)## [1] "1984" "1985" "1986" "1987" "1988" "1989" "1990" "1991" "1992" "1993"
## [11] "1994" "1995" "1996" "1997" "1998" "1999" "2000" "2001" "2002" "2003"
## [21] "2004" "2005" "2006" "2007" "2008" "2009" "2010" "2011" "2012" "2013"
## [31] "2014" "2015"Here we set ‘Honda’ and ‘Toyota’ as two levels of factor ‘make’ as an example; and year from ‘2005’ to ‘2011’ as levels of factor ‘year’. All corresponding samples are as below:
library("fueleconomy")
M<-x$make=='Honda'|x$make=='Toyota'
N<-x[M,]
P<-N$year=='2005'|N$year=='2006'|N$year=='2007'|N$year=='2008'|N$year=='2009'|N$year=='2010'|N$year=='2011'
sample<-N[P,]
sample## id make model year
## 15928 20867 Honda Accord 2005
## 15929 20868 Honda Accord 2005
## 15930 20869 Honda Accord 2005
## 15931 20870 Honda Accord 2005
## 15932 21960 Honda Accord 2006
## 15933 21961 Honda Accord 2006
## 15934 21962 Honda Accord 2006
## 15935 21963 Honda Accord 2006
## 15936 23567 Honda Accord 2007
## 15937 23568 Honda Accord 2007
## 15938 23569 Honda Accord 2007
## 15939 23570 Honda Accord 2007
## 15940 24900 Honda Accord 2008
## 15941 24901 Honda Accord 2008
## 15942 24902 Honda Accord 2008
## 15943 26005 Honda Accord 2009
## 15944 26006 Honda Accord 2009
## 15945 26007 Honda Accord 2009
## 15946 29658 Honda Accord 2010
## 15947 29659 Honda Accord 2010
## 15948 29660 Honda Accord 2010
## 15949 30684 Honda Accord 2011
## 15950 30685 Honda Accord 2011
## 15951 30686 Honda Accord 2011
## 15967 24825 Honda Accord Coupe 2008
## 15968 24826 Honda Accord Coupe 2008
## 15969 24827 Honda Accord Coupe 2008
## 15970 24828 Honda Accord Coupe 2008
## 15971 25917 Honda Accord Coupe 2009
## 15972 25918 Honda Accord Coupe 2009
## 15973 25919 Honda Accord Coupe 2009
## 15974 25920 Honda Accord Coupe 2009
## 15975 29654 Honda Accord Coupe 2010
## 15976 29655 Honda Accord Coupe 2010
## 15977 29656 Honda Accord Coupe 2010
## 15978 29657 Honda Accord Coupe 2010
## 15979 30628 Honda Accord Coupe 2011
## 15980 30629 Honda Accord Coupe 2011
## 15981 30630 Honda Accord Coupe 2011
## 15982 30631 Honda Accord Coupe 2011
## 15987 29935 Honda Accord Crosstour 2WD 2010
## 15988 30885 Honda Accord Crosstour 2WD 2011
## 15989 29944 Honda Accord Crosstour 4WD 2010
## 15990 30901 Honda Accord Crosstour 4WD 2011
## 15991 21539 Honda Accord Hybrid 2005
## 15992 22676 Honda Accord Hybrid 2006
## 15993 23571 Honda Accord Hybrid 2007
## 16025 21298 Honda CR-V 2WD 2005
## 16026 22401 Honda CR-V 2WD 2006
## 16027 23729 Honda CR-V 2WD 2007
## 16028 24981 Honda CR-V 2WD 2008
## 16029 26132 Honda CR-V 2WD 2009
## 16030 29743 Honda CR-V 2WD 2010
## 16031 30742 Honda CR-V 2WD 2011
## 16051 21405 Honda CR-V 4WD 2005
## 16052 21406 Honda CR-V 4WD 2005
## 16053 22508 Honda CR-V 4WD 2006
## 16054 22509 Honda CR-V 4WD 2006
## 16055 23791 Honda CR-V 4WD 2007
## 16056 25023 Honda CR-V 4WD 2008
## 16057 26176 Honda CR-V 4WD 2009
## 16058 29749 Honda CR-V 4WD 2010
## 16059 30782 Honda CR-V 4WD 2011
## 16063 30587 Honda CR-Z 2011
## 16064 30588 Honda CR-Z 2011
## 16178 20705 Honda Civic 2005
## 16179 20706 Honda Civic 2005
## 16180 20707 Honda Civic 2005
## 16181 20708 Honda Civic 2005
## 16182 20709 Honda Civic 2005
## 16183 20710 Honda Civic 2005
## 16184 20711 Honda Civic 2005
## 16185 21736 Honda Civic 2006
## 16186 21737 Honda Civic 2006
## 16187 22675 Honda Civic 2006
## 16188 23502 Honda Civic 2007
## 16189 23503 Honda Civic 2007
## 16190 23504 Honda Civic 2007
## 16191 25082 Honda Civic 2008
## 16192 25084 Honda Civic 2008
## 16193 25085 Honda Civic 2008
## 16194 25869 Honda Civic 2009
## 16195 25870 Honda Civic 2009
## 16196 26250 Honda Civic 2009
## 16197 29700 Honda Civic 2010
## 16198 29701 Honda Civic 2010
## 16199 29702 Honda Civic 2010
## 16200 30602 Honda Civic 2011
## 16201 30603 Honda Civic 2011
## 16202 30604 Honda Civic 2011
## 16219 21527 Honda Civic CNG 2005
## 16220 23053 Honda Civic CNG 2006
## 16221 23862 Honda Civic CNG 2007
## 16222 25083 Honda Civic CNG 2008
## 16223 25868 Honda Civic CNG 2009
## 16224 29758 Honda Civic CNG 2010
## 16225 30601 Honda Civic CNG 2011
## 16308 20712 Honda Civic Hybrid 2005
## 16309 20713 Honda Civic Hybrid 2005
## 16310 20714 Honda Civic Hybrid 2005
## 16311 20715 Honda Civic Hybrid 2005
## 16312 22643 Honda Civic Hybrid 2006
## 16313 23533 Honda Civic Hybrid 2007
## 16314 24829 Honda Civic Hybrid 2008
## 16315 25921 Honda Civic Hybrid 2009
## 16316 29712 Honda Civic Hybrid 2010
## 16317 30627 Honda Civic Hybrid 2011
## 16374 21540 Honda Element 2WD 2005
## 16375 21541 Honda Element 2WD 2005
## 16376 22402 Honda Element 2WD 2006
## 16377 22403 Honda Element 2WD 2006
## 16378 23730 Honda Element 2WD 2007
## 16379 23731 Honda Element 2WD 2007
## 16380 24607 Honda Element 2WD 2008
## 16381 24608 Honda Element 2WD 2008
## 16382 26280 Honda Element 2WD 2009
## 16383 26281 Honda Element 2WD 2009
## 16384 29795 Honda Element 2WD 2010
## 16385 29796 Honda Element 2WD 2010
## 16386 30886 Honda Element 2WD 2011
## 16391 21542 Honda Element 4WD 2005
## 16392 21543 Honda Element 4WD 2005
## 16393 22510 Honda Element 4WD 2006
## 16394 22511 Honda Element 4WD 2006
## 16395 23792 Honda Element 4WD 2007
## 16396 23793 Honda Element 4WD 2007
## 16397 24654 Honda Element 4WD 2008
## 16398 24655 Honda Element 4WD 2008
## 16399 26284 Honda Element 4WD 2009
## 16400 26285 Honda Element 4WD 2009
## 16401 29804 Honda Element 4WD 2010
## 16402 29805 Honda Element 4WD 2010
## 16403 30902 Honda Element 4WD 2011
## 16404 30903 Honda Element 4WD 2011
## 16405 22860 Honda Fit 2007
## 16406 22861 Honda Fit 2007
## 16407 22862 Honda Fit 2007
## 16408 24920 Honda Fit 2008
## 16409 24921 Honda Fit 2008
## 16410 24922 Honda Fit 2008
## 16411 26019 Honda Fit 2009
## 16412 26020 Honda Fit 2009
## 16413 26021 Honda Fit 2009
## 16414 29636 Honda Fit 2010
## 16415 29637 Honda Fit 2010
## 16416 29638 Honda Fit 2010
## 16417 31079 Honda Fit 2011
## 16418 31080 Honda Fit 2011
## 16419 31081 Honda Fit 2011
## 16441 20478 Honda Insight 2005
## 16442 20479 Honda Insight 2005
## 16443 21631 Honda Insight 2006
## 16444 21632 Honda Insight 2006
## 16445 26365 Honda Insight 2010
## 16446 26366 Honda Insight 2010
## 16447 30843 Honda Insight 2011
## 16448 30844 Honda Insight 2011
## 16465 21235 Honda Odyssey 2005
## 16466 21236 Honda Odyssey 2005
## 16467 22330 Honda Odyssey 2006
## 16468 22331 Honda Odyssey 2006
## 16469 23701 Honda Odyssey 2007
## 16470 23702 Honda Odyssey 2007
## 16471 25116 Honda Odyssey 2008
## 16472 25117 Honda Odyssey 2008
## 16473 26114 Honda Odyssey 2009
## 16474 26115 Honda Odyssey 2009
## 16475 28731 Honda Odyssey 2010
## 16476 28732 Honda Odyssey 2010
## 16477 30883 Honda Odyssey 2011
## 16478 30884 Honda Odyssey 2011
## 16524 22404 Honda Pilot 2WD 2006
## 16525 23732 Honda Pilot 2WD 2007
## 16526 24609 Honda Pilot 2WD 2008
## 16527 25630 Honda Pilot 2WD 2009
## 16528 28756 Honda Pilot 2WD 2010
## 16529 30184 Honda Pilot 2WD 2011
## 16535 21407 Honda Pilot 4WD 2005
## 16536 22512 Honda Pilot 4WD 2006
## 16537 23794 Honda Pilot 4WD 2007
## 16538 24656 Honda Pilot 4WD 2008
## 16539 25676 Honda Pilot 4WD 2009
## 16540 28796 Honda Pilot 4WD 2010
## 16541 30208 Honda Pilot 4WD 2011
## 16611 22281 Honda Ridgeline Truck 4WD 2006
## 16612 23370 Honda Ridgeline Truck 4WD 2007
## 16613 24543 Honda Ridgeline Truck 4WD 2008
## 16614 26091 Honda Ridgeline Truck 4WD 2009
## 16615 29598 Honda Ridgeline Truck 4WD 2010
## 16616 30471 Honda Ridgeline Truck 4WD 2011
## 16625 20480 Honda S2000 2005
## 16626 21633 Honda S2000 2006
## 16627 23479 Honda S2000 2007
## 16628 24758 Honda S2000 2008
## 16629 25788 Honda S2000 2009
## 30062 21344 Toyota 4Runner 2WD 2005
## 30063 21585 Toyota 4Runner 2WD 2005
## 30064 22455 Toyota 4Runner 2WD 2006
## 30065 22456 Toyota 4Runner 2WD 2006
## 30066 23763 Toyota 4Runner 2WD 2007
## 30067 23764 Toyota 4Runner 2WD 2007
## 30068 24627 Toyota 4Runner 2WD 2008
## 30069 25007 Toyota 4Runner 2WD 2008
## 30070 26157 Toyota 4Runner 2WD 2009
## 30071 26158 Toyota 4Runner 2WD 2009
## 30072 29745 Toyota 4Runner 2WD 2010
## 30073 29942 Toyota 4Runner 2WD 2010
## 30074 30768 Toyota 4Runner 2WD 2011
## 30075 30769 Toyota 4Runner 2WD 2011
## 30145 21479 Toyota 4Runner 4WD 2005
## 30146 21591 Toyota 4Runner 4WD 2005
## 30147 22598 Toyota 4Runner 4WD 2006
## 30148 22599 Toyota 4Runner 4WD 2006
## 30149 23831 Toyota 4Runner 4WD 2007
## 30150 23832 Toyota 4Runner 4WD 2007
## 30151 24689 Toyota 4Runner 4WD 2008
## 30152 25053 Toyota 4Runner 4WD 2008
## 30153 26208 Toyota 4Runner 4WD 2009
## 30154 26209 Toyota 4Runner 4WD 2009
## 30155 29752 Toyota 4Runner 4WD 2010
## 30156 29753 Toyota 4Runner 4WD 2010
## 30157 30827 Toyota 4Runner 4WD 2011
## 30158 30828 Toyota 4Runner 4WD 2011
## 30175 21597 Toyota Avalon 2005
## 30176 22087 Toyota Avalon 2006
## 30177 23616 Toyota Avalon 2007
## 30178 24427 Toyota Avalon 2008
## 30179 26012 Toyota Avalon 2009
## 30180 29506 Toyota Avalon 2010
## 30181 30112 Toyota Avalon 2011
## 30294 20930 Toyota Camry 2005
## 30295 20931 Toyota Camry 2005
## 30296 20932 Toyota Camry 2005
## 30297 20933 Toyota Camry 2005
## 30298 22012 Toyota Camry 2006
## 30299 22013 Toyota Camry 2006
## 30300 22014 Toyota Camry 2006
## 30301 22015 Toyota Camry 2006
## 30302 22822 Toyota Camry 2007
## 30303 22823 Toyota Camry 2007
## 30304 22824 Toyota Camry 2007
## 30305 24401 Toyota Camry 2008
## 30306 24402 Toyota Camry 2008
## 30307 24403 Toyota Camry 2008
## 30308 25275 Toyota Camry 2009
## 30309 25276 Toyota Camry 2009
## 30310 25277 Toyota Camry 2009
## 30311 26421 Toyota Camry 2010
## 30312 26422 Toyota Camry 2010
## 30313 26423 Toyota Camry 2010
## 30314 30086 Toyota Camry 2011
## 30315 30087 Toyota Camry 2011
## 30316 30088 Toyota Camry 2011
## 30326 22825 Toyota Camry Hybrid 2007
## 30327 24404 Toyota Camry Hybrid 2008
## 30328 25278 Toyota Camry Hybrid 2009
## 30329 26424 Toyota Camry Hybrid 2010
## 30330 30089 Toyota Camry Hybrid 2011
## 30359 20792 Toyota Camry Solara 2005
## 30360 20793 Toyota Camry Solara 2005
## 30361 20794 Toyota Camry Solara 2005
## 30362 21877 Toyota Camry Solara 2006
## 30363 21878 Toyota Camry Solara 2006
## 30364 21879 Toyota Camry Solara 2006
## 30365 23213 Toyota Camry Solara 2007
## 30366 23214 Toyota Camry Solara 2007
## 30367 23215 Toyota Camry Solara 2007
## 30368 24316 Toyota Camry Solara 2008
## 30369 24317 Toyota Camry Solara 2008
## 30370 24318 Toyota Camry Solara 2008
## 30380 20795 Toyota Camry Solara Convertible 2005
## 30381 21880 Toyota Camry Solara Convertible 2006
## 30382 23216 Toyota Camry Solara Convertible 2007
## 30383 24319 Toyota Camry Solara Convertible 2008
## 30501 20643 Toyota Celica 2005
## 30502 20644 Toyota Celica 2005
## 30503 20645 Toyota Celica 2005
## 30504 20646 Toyota Celica 2005
## 30608 20796 Toyota Corolla 2005
## 30609 20797 Toyota Corolla 2005
## 30610 20798 Toyota Corolla 2005
## 30611 21881 Toyota Corolla 2006
## 30612 21882 Toyota Corolla 2006
## 30613 21883 Toyota Corolla 2006
## 30614 23548 Toyota Corolla 2007
## 30615 23549 Toyota Corolla 2007
## 30616 24320 Toyota Corolla 2008
## 30617 24321 Toyota Corolla 2008
## 30618 25252 Toyota Corolla 2009
## 30619 25253 Toyota Corolla 2009
## 30620 25254 Toyota Corolla 2009
## 30621 25255 Toyota Corolla 2009
## 30622 26376 Toyota Corolla 2010
## 30623 26377 Toyota Corolla 2010
## 30624 26378 Toyota Corolla 2010
## 30625 26379 Toyota Corolla 2010
## 30626 30846 Toyota Corolla 2011
## 30627 30847 Toyota Corolla 2011
## 30628 30848 Toyota Corolla 2011
## 30629 30849 Toyota Corolla 2011
## 30708 20799 Toyota Echo 2005
## 30709 20800 Toyota Echo 2005
## 30710 22986 Toyota FJ Cruiser 2WD 2007
## 30711 24628 Toyota FJ Cruiser 2WD 2008
## 30712 26159 Toyota FJ Cruiser 2WD 2009
## 30713 29746 Toyota FJ Cruiser 2WD 2010
## 30714 30897 Toyota FJ Cruiser 2WD 2011
## 30718 23034 Toyota FJ Cruiser 4WD 2007
## 30719 23035 Toyota FJ Cruiser 4WD 2007
## 30720 24690 Toyota FJ Cruiser 4WD 2008
## 30721 24691 Toyota FJ Cruiser 4WD 2008
## 30722 26210 Toyota FJ Cruiser 4WD 2009
## 30723 26211 Toyota FJ Cruiser 4WD 2009
## 30724 29754 Toyota FJ Cruiser 4WD 2010
## 30725 29755 Toyota FJ Cruiser 4WD 2010
## 30726 30913 Toyota FJ Cruiser 4WD 2011
## 30727 30914 Toyota FJ Cruiser 4WD 2011
## 30742 21345 Toyota Highlander 2WD 2005
## 30743 21346 Toyota Highlander 2WD 2005
## 30744 22457 Toyota Highlander 2WD 2006
## 30745 22458 Toyota Highlander 2WD 2006
## 30746 23765 Toyota Highlander 2WD 2007
## 30747 23766 Toyota Highlander 2WD 2007
## 30748 24629 Toyota Highlander 2WD 2008
## 30749 25656 Toyota Highlander 2WD 2009
## 30750 29380 Toyota Highlander 2WD 2009
## 30751 29747 Toyota Highlander 2WD 2010
## 30752 29748 Toyota Highlander 2WD 2010
## 30753 30765 Toyota Highlander 2WD 2011
## 30754 30766 Toyota Highlander 2WD 2011
## 30769 21480 Toyota Highlander 4WD 2005
## 30770 21481 Toyota Highlander 4WD 2005
## 30771 22600 Toyota Highlander 4WD 2006
## 30772 22601 Toyota Highlander 4WD 2006
## 30773 23833 Toyota Highlander 4WD 2007
## 30774 23834 Toyota Highlander 4WD 2007
## 30775 24692 Toyota Highlander 4WD 2008
## 30776 25723 Toyota Highlander 4WD 2009
## 30777 29756 Toyota Highlander 4WD 2010
## 30778 30824 Toyota Highlander 4WD 2011
## 30782 22459 Toyota Highlander Hybrid 2WD 2006
## 30783 23767 Toyota Highlander Hybrid 2WD 2007
## 30784 22602 Toyota Highlander Hybrid 4WD 2006
## 30785 23835 Toyota Highlander Hybrid 4WD 2007
## 30786 25054 Toyota Highlander Hybrid 4WD 2008
## 30787 26289 Toyota Highlander Hybrid 4WD 2009
## 30788 29757 Toyota Highlander Hybrid 4WD 2010
## 30789 30826 Toyota Highlander Hybrid 4WD 2011
## 30815 21482 Toyota Land Cruiser Wagon 4WD 2005
## 30816 22603 Toyota Land Cruiser Wagon 4WD 2006
## 30817 23836 Toyota Land Cruiser Wagon 4WD 2007
## 30818 25055 Toyota Land Cruiser Wagon 4WD 2008
## 30819 26212 Toyota Land Cruiser Wagon 4WD 2009
## 30820 29548 Toyota Land Cruiser Wagon 4WD 2010
## 30821 30830 Toyota Land Cruiser Wagon 4WD 2011
## 30859 20508 Toyota MR2 2005
## 30860 20509 Toyota MR2 2005
## 30870 21029 Toyota Matrix 2005
## 30871 21030 Toyota Matrix 2005
## 30872 21031 Toyota Matrix 2005
## 30873 21032 Toyota Matrix 2005
## 30874 22123 Toyota Matrix 2006
## 30875 22124 Toyota Matrix 2006
## 30876 22125 Toyota Matrix 2006
## 30877 22126 Toyota Matrix 2006
## 30878 23627 Toyota Matrix 2007
## 30879 23628 Toyota Matrix 2007
## 30880 24443 Toyota Matrix 2008
## 30881 24444 Toyota Matrix 2008
## 30882 25305 Toyota Matrix 2009
## 30883 25306 Toyota Matrix 2009
## 30884 25307 Toyota Matrix 2009
## 30885 25308 Toyota Matrix 2009
## 30886 25309 Toyota Matrix 2009
## 30887 26447 Toyota Matrix 2010
## 30888 26448 Toyota Matrix 2010
## 30889 26449 Toyota Matrix 2010
## 30890 26450 Toyota Matrix 2010
## 30891 26451 Toyota Matrix 2010
## 30892 30870 Toyota Matrix 2011
## 30893 30871 Toyota Matrix 2011
## 30894 30872 Toyota Matrix 2011
## 30895 30873 Toyota Matrix 2011
## 30896 30874 Toyota Matrix 2011
## 30956 20934 Toyota Prius 2005
## 30957 22016 Toyota Prius 2006
## 30958 23599 Toyota Prius 2007
## 30959 24882 Toyota Prius 2008
## 30960 25987 Toyota Prius 2009
## 30961 26425 Toyota Prius 2010
## 30962 30919 Toyota Prius 2011
## 30994 21347 Toyota RAV4 2WD 2005
## 30995 21348 Toyota RAV4 2WD 2005
## 30996 22687 Toyota RAV4 2WD 2006
## 30997 22688 Toyota RAV4 2WD 2006
## 30998 23768 Toyota RAV4 2WD 2007
## 30999 23769 Toyota RAV4 2WD 2007
## 31000 25008 Toyota RAV4 2WD 2008
## 31001 25009 Toyota RAV4 2WD 2008
## 31002 25657 Toyota RAV4 2WD 2009
## 31003 26160 Toyota RAV4 2WD 2009
## 31004 29642 Toyota RAV4 2WD 2010
## 31005 29643 Toyota RAV4 2WD 2010
## 31006 30764 Toyota RAV4 2WD 2011
## 31007 30767 Toyota RAV4 2WD 2011
## 31029 21483 Toyota RAV4 4WD 2005
## 31030 21484 Toyota RAV4 4WD 2005
## 31031 22691 Toyota RAV4 4WD 2006
## 31032 22692 Toyota RAV4 4WD 2006
## 31033 23837 Toyota RAV4 4WD 2007
## 31034 23838 Toyota RAV4 4WD 2007
## 31035 25056 Toyota RAV4 4WD 2008
## 31036 25057 Toyota RAV4 4WD 2008
## 31037 25724 Toyota RAV4 4WD 2009
## 31038 26213 Toyota RAV4 4WD 2009
## 31039 29647 Toyota RAV4 4WD 2010
## 31040 29648 Toyota RAV4 4WD 2010
## 31041 30823 Toyota RAV4 4WD 2011
## 31042 30825 Toyota RAV4 4WD 2011
## 31072 21349 Toyota Sequoia 2WD 2005
## 31073 22460 Toyota Sequoia 2WD 2006
## 31074 23770 Toyota Sequoia 2WD 2007
## 31075 25010 Toyota Sequoia 2WD 2008
## 31076 25011 Toyota Sequoia 2WD 2008
## 31077 26161 Toyota Sequoia 2WD 2009
## 31078 26162 Toyota Sequoia 2WD 2009
## 31079 26479 Toyota Sequoia 2WD 2010
## 31080 26480 Toyota Sequoia 2WD 2010
## 31081 30770 Toyota Sequoia 2WD 2011
## 31082 30771 Toyota Sequoia 2WD 2011
## 31091 21485 Toyota Sequoia 4WD 2005
## 31092 22604 Toyota Sequoia 4WD 2006
## 31093 23839 Toyota Sequoia 4WD 2007
## 31094 25058 Toyota Sequoia 4WD 2008
## 31095 25059 Toyota Sequoia 4WD 2008
## 31096 26214 Toyota Sequoia 4WD 2009
## 31097 26215 Toyota Sequoia 4WD 2009
## 31098 26247 Toyota Sequoia 4WD 2009
## 31099 26514 Toyota Sequoia 4WD 2010
## 31100 26515 Toyota Sequoia 4WD 2010
## 31101 30829 Toyota Sequoia 4WD 2011
## 31102 30831 Toyota Sequoia 4WD 2011
## 31107 26516 Toyota Sequoia 4WD FFV 2010
## 31108 30832 Toyota Sequoia 4WD FFV 2011
## 31119 21245 Toyota Sienna 2WD 2005
## 31120 22342 Toyota Sienna 2WD 2006
## 31121 23938 Toyota Sienna 2WD 2007
## 31122 24972 Toyota Sienna 2WD 2008
## 31123 25596 Toyota Sienna 2WD 2009
## 31124 26463 Toyota Sienna 2WD 2010
## 31125 30175 Toyota Sienna 2WD 2011
## 31126 30176 Toyota Sienna 2WD 2011
## 31133 21250 Toyota Sienna 4WD 2005
## 31134 22348 Toyota Sienna 4WD 2006
## 31135 23939 Toyota Sienna 4WD 2007
## 31136 24973 Toyota Sienna 4WD 2008
## 31137 25597 Toyota Sienna 4WD 2009
## 31138 26464 Toyota Sienna 4WD 2010
## 31139 30177 Toyota Sienna AWD 2011
## 31273 21136 Toyota Tacoma 2WD 2005
## 31274 21137 Toyota Tacoma 2WD 2005
## 31275 21138 Toyota Tacoma 2WD 2005
## 31276 21139 Toyota Tacoma 2WD 2005
## 31277 22232 Toyota Tacoma 2WD 2006
## 31278 22233 Toyota Tacoma 2WD 2006
## 31279 22234 Toyota Tacoma 2WD 2006
## 31280 22235 Toyota Tacoma 2WD 2006
## 31281 23661 Toyota Tacoma 2WD 2007
## 31282 23662 Toyota Tacoma 2WD 2007
## 31283 23663 Toyota Tacoma 2WD 2007
## 31284 23664 Toyota Tacoma 2WD 2007
## 31285 24487 Toyota Tacoma 2WD 2008
## 31286 24488 Toyota Tacoma 2WD 2008
## 31287 24936 Toyota Tacoma 2WD 2008
## 31288 24937 Toyota Tacoma 2WD 2008
## 31289 25557 Toyota Tacoma 2WD 2009
## 31290 25558 Toyota Tacoma 2WD 2009
## 31291 25559 Toyota Tacoma 2WD 2009
## 31292 25560 Toyota Tacoma 2WD 2009
## 31293 29519 Toyota Tacoma 2WD 2010
## 31294 29520 Toyota Tacoma 2WD 2010
## 31295 29521 Toyota Tacoma 2WD 2010
## 31296 29522 Toyota Tacoma 2WD 2010
## 31297 30445 Toyota Tacoma 2WD 2011
## 31298 30446 Toyota Tacoma 2WD 2011
## 31299 30447 Toyota Tacoma 2WD 2011
## 31300 30448 Toyota Tacoma 2WD 2011
## 31353 21184 Toyota Tacoma 4WD 2005
## 31354 21185 Toyota Tacoma 4WD 2005
## 31355 21186 Toyota Tacoma 4WD 2005
## 31356 22293 Toyota Tacoma 4WD 2006
## 31357 22294 Toyota Tacoma 4WD 2006
## 31358 22295 Toyota Tacoma 4WD 2006
## 31359 23692 Toyota Tacoma 4WD 2007
## 31360 23693 Toyota Tacoma 4WD 2007
## 31361 23694 Toyota Tacoma 4WD 2007
## 31362 24507 Toyota Tacoma 4WD 2008
## 31363 24508 Toyota Tacoma 4WD 2008
## 31364 24940 Toyota Tacoma 4WD 2008
## 31365 25572 Toyota Tacoma 4WD 2009
## 31366 25573 Toyota Tacoma 4WD 2009
## 31367 25574 Toyota Tacoma 4WD 2009
## 31368 29526 Toyota Tacoma 4WD 2010
## 31369 29527 Toyota Tacoma 4WD 2010
## 31370 29528 Toyota Tacoma 4WD 2010
## 31371 30449 Toyota Tacoma 4WD 2011
## 31372 30450 Toyota Tacoma 4WD 2011
## 31373 30451 Toyota Tacoma 4WD 2011
## 31374 30452 Toyota Tacoma 4WD 2011
## 31608 21140 Toyota Tundra 2WD 2005
## 31609 21141 Toyota Tundra 2WD 2005
## 31610 21142 Toyota Tundra 2WD 2005
## 31611 22236 Toyota Tundra 2WD 2006
## 31612 22237 Toyota Tundra 2WD 2006
## 31613 22238 Toyota Tundra 2WD 2006
## 31614 23665 Toyota Tundra 2WD 2007
## 31615 23666 Toyota Tundra 2WD 2007
## 31616 23936 Toyota Tundra 2WD 2007
## 31617 24953 Toyota Tundra 2WD 2008
## 31618 24954 Toyota Tundra 2WD 2008
## 31619 24955 Toyota Tundra 2WD 2008
## 31620 26077 Toyota Tundra 2WD 2009
## 31621 26078 Toyota Tundra 2WD 2009
## 31622 26079 Toyota Tundra 2WD 2009
## 31623 26456 Toyota Tundra 2WD 2010
## 31624 26457 Toyota Tundra 2WD 2010
## 31625 26458 Toyota Tundra 2WD 2010
## 31626 30715 Toyota Tundra 2WD 2011
## 31627 30716 Toyota Tundra 2WD 2011
## 31628 30882 Toyota Tundra 2WD 2011
## 31653 21187 Toyota Tundra 4WD 2005
## 31654 22296 Toyota Tundra 4WD 2006
## 31655 23695 Toyota Tundra 4WD 2007
## 31656 23937 Toyota Tundra 4WD 2007
## 31657 24965 Toyota Tundra 4WD 2008
## 31658 24966 Toyota Tundra 4WD 2008
## 31659 26094 Toyota Tundra 4WD 2009
## 31660 26095 Toyota Tundra 4WD 2009
## 31661 26248 Toyota Tundra 4WD 2009
## 31662 26459 Toyota Tundra 4WD 2010
## 31663 26460 Toyota Tundra 4WD 2010
## 31664 30720 Toyota Tundra 4WD 2011
## 31665 30721 Toyota Tundra 4WD 2011
## 31672 26461 Toyota Tundra 4WD FFV 2010
## 31673 30722 Toyota Tundra 4WD FFV 2011
## 31704 26282 Toyota Venza 2009
## 31705 29381 Toyota Venza 2009
## 31706 29940 Toyota Venza 2010
## 31707 29941 Toyota Venza 2010
## 31708 30898 Toyota Venza 2011
## 31709 30899 Toyota Venza 2011
## 31718 26290 Toyota Venza AWD 2009
## 31719 29382 Toyota Venza AWD 2009
## 31720 29952 Toyota Venza AWD 2010
## 31721 29953 Toyota Venza AWD 2010
## 31722 30915 Toyota Venza AWD 2011
## 31723 30916 Toyota Venza AWD 2011
## 31728 22749 Toyota Yaris 2007
## 31729 22750 Toyota Yaris 2007
## 31730 24807 Toyota Yaris 2008
## 31731 24808 Toyota Yaris 2008
## 31732 25893 Toyota Yaris 2009
## 31733 25894 Toyota Yaris 2009
## 31734 29629 Toyota Yaris 2010
## 31735 29630 Toyota Yaris 2010
## 31736 30623 Toyota Yaris 2011
## 31737 30624 Toyota Yaris 2011
## class trans
## 15928 Midsize Cars Automatic 5-spd
## 15929 Midsize Cars Manual 5-spd
## 15930 Midsize Cars Automatic 5-spd
## 15931 Midsize Cars Manual 6-spd
## 15932 Midsize Cars Automatic 5-spd
## 15933 Midsize Cars Manual 5-spd
## 15934 Midsize Cars Automatic 5-spd
## 15935 Midsize Cars Manual 6-spd
## 15936 Midsize Cars Automatic 5-spd
## 15937 Midsize Cars Manual 5-spd
## 15938 Midsize Cars Automatic 5-spd
## 15939 Midsize Cars Manual 6-spd
## 15940 Large Cars Automatic 5-spd
## 15941 Large Cars Manual 5-spd
## 15942 Large Cars Automatic 5-spd
## 15943 Large Cars Manual 5-spd
## 15944 Large Cars Automatic 5-spd
## 15945 Large Cars Automatic 5-spd
## 15946 Large Cars Automatic 5-spd
## 15947 Large Cars Manual 5-spd
## 15948 Large Cars Automatic 5-spd
## 15949 Large Cars Manual 5-spd
## 15950 Large Cars Automatic 5-spd
## 15951 Large Cars Automatic 5-spd
## 15967 Compact Cars Automatic 5-spd
## 15968 Compact Cars Manual 5-spd
## 15969 Compact Cars Automatic 5-spd
## 15970 Compact Cars Manual 6-spd
## 15971 Compact Cars Manual 5-spd
## 15972 Compact Cars Automatic 5-spd
## 15973 Compact Cars Automatic 5-spd
## 15974 Compact Cars Manual 6-spd
## 15975 Compact Cars Automatic 5-spd
## 15976 Compact Cars Manual 5-spd
## 15977 Compact Cars Automatic 5-spd
## 15978 Compact Cars Manual 6-spd
## 15979 Compact Cars Manual 5-spd
## 15980 Compact Cars Automatic 5-spd
## 15981 Compact Cars Manual 6-spd
## 15982 Compact Cars Automatic (S5)
## 15987 Sport Utility Vehicle - 2WD Automatic 5-spd
## 15988 Sport Utility Vehicle - 2WD Automatic 5-spd
## 15989 Sport Utility Vehicle - 4WD Automatic 5-spd
## 15990 Sport Utility Vehicle - 4WD Automatic 5-spd
## 15991 Midsize Cars Automatic 5-spd
## 15992 Midsize Cars Automatic 5-spd
## 15993 Midsize Cars Automatic 5-spd
## 16025 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16026 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16027 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16028 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16029 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16030 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16031 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16051 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16052 Sport Utility Vehicle - 4WD Manual 5-spd
## 16053 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16054 Sport Utility Vehicle - 4WD Manual 5-spd
## 16055 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16056 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16057 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16058 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16059 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16063 Two Seaters Manual 6-spd
## 16064 Two Seaters Auto(AV-S7)
## 16178 Compact Cars Automatic (variable gear ratios)
## 16179 Compact Cars Automatic 4-spd
## 16180 Compact Cars Automatic 4-spd
## 16181 Compact Cars Manual 5-spd
## 16182 Compact Cars Manual 5-spd
## 16183 Compact Cars Manual 5-spd
## 16184 Compact Cars Manual 5-spd
## 16185 Subcompact Cars Automatic 5-spd
## 16186 Subcompact Cars Manual 5-spd
## 16187 Subcompact Cars Manual 6-spd
## 16188 Subcompact Cars Automatic 5-spd
## 16189 Subcompact Cars Manual 5-spd
## 16190 Subcompact Cars Manual 6-spd
## 16191 Subcompact Cars Automatic 5-spd
## 16192 Subcompact Cars Manual 5-spd
## 16193 Subcompact Cars Manual 6-spd
## 16194 Subcompact Cars Manual 5-spd
## 16195 Subcompact Cars Automatic 5-spd
## 16196 Subcompact Cars Manual 6-spd
## 16197 Subcompact Cars Automatic 5-spd
## 16198 Subcompact Cars Manual 5-spd
## 16199 Subcompact Cars Manual 6-spd
## 16200 Subcompact Cars Manual 5-spd
## 16201 Subcompact Cars Automatic 5-spd
## 16202 Subcompact Cars Manual 6-spd
## 16219 Compact Cars Automatic (variable gear ratios)
## 16220 Subcompact Cars Automatic 5-spd
## 16221 Subcompact Cars Automatic 5-spd
## 16222 Subcompact Cars Automatic 5-spd
## 16223 Subcompact Cars Automatic 5-spd
## 16224 Subcompact Cars Automatic 5-spd
## 16225 Subcompact Cars Automatic 5-spd
## 16308 Compact Cars Automatic (variable gear ratios)
## 16309 Compact Cars Automatic (variable gear ratios)
## 16310 Compact Cars Manual 5-spd
## 16311 Compact Cars Manual 5-spd
## 16312 Compact Cars Automatic (variable gear ratios)
## 16313 Compact Cars Automatic (variable gear ratios)
## 16314 Compact Cars Automatic (variable gear ratios)
## 16315 Compact Cars Automatic (variable gear ratios)
## 16316 Compact Cars Automatic (variable gear ratios)
## 16317 Compact Cars Automatic (variable gear ratios)
## 16374 Sport Utility Vehicle - 2WD Automatic 4-spd
## 16375 Sport Utility Vehicle - 2WD Manual 5-spd
## 16376 Sport Utility Vehicle - 2WD Automatic 4-spd
## 16377 Sport Utility Vehicle - 2WD Manual 5-spd
## 16378 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16379 Sport Utility Vehicle - 2WD Manual 5-spd
## 16380 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16381 Sport Utility Vehicle - 2WD Manual 5-spd
## 16382 Sport Utility Vehicle - 2WD Manual 5-spd
## 16383 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16384 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16385 Sport Utility Vehicle - 2WD Manual 5-spd
## 16386 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16391 Sport Utility Vehicle - 4WD Automatic 4-spd
## 16392 Sport Utility Vehicle - 4WD Manual 5-spd
## 16393 Sport Utility Vehicle - 4WD Automatic 4-spd
## 16394 Sport Utility Vehicle - 4WD Manual 5-spd
## 16395 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16396 Sport Utility Vehicle - 4WD Manual 5-spd
## 16397 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16398 Sport Utility Vehicle - 4WD Manual 5-spd
## 16399 Sport Utility Vehicle - 4WD Manual 5-spd
## 16400 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16401 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16402 Sport Utility Vehicle - 4WD Manual 5-spd
## 16403 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16404 Sport Utility Vehicle - 4WD Manual 5-spd
## 16405 Small Station Wagons Automatic 5-spd
## 16406 Small Station Wagons Manual 5-spd
## 16407 Small Station Wagons Automatic (S5)
## 16408 Small Station Wagons Automatic 5-spd
## 16409 Small Station Wagons Manual 5-spd
## 16410 Small Station Wagons Automatic (S5)
## 16411 Small Station Wagons Automatic 5-spd
## 16412 Small Station Wagons Manual 5-spd
## 16413 Small Station Wagons Automatic (S5)
## 16414 Small Station Wagons Automatic 5-spd
## 16415 Small Station Wagons Manual 5-spd
## 16416 Small Station Wagons Automatic (S5)
## 16417 Small Station Wagons Automatic 5-spd
## 16418 Small Station Wagons Manual 5-spd
## 16419 Small Station Wagons Automatic (S5)
## 16441 Two Seaters Automatic (variable gear ratios)
## 16442 Two Seaters Manual 5-spd
## 16443 Two Seaters Automatic (variable gear ratios)
## 16444 Two Seaters Manual 5-spd
## 16445 Compact Cars Auto(AV-S7)
## 16446 Compact Cars Automatic (variable gear ratios)
## 16447 Compact Cars Automatic (variable gear ratios)
## 16448 Compact Cars Auto(AV-S7)
## 16465 Minivan - 2WD Automatic 5-spd
## 16466 Minivan - 2WD Automatic 5-spd
## 16467 Minivan - 2WD Automatic 5-spd
## 16468 Minivan - 2WD Automatic 5-spd
## 16469 Minivan - 2WD Automatic 5-spd
## 16470 Minivan - 2WD Automatic 5-spd
## 16471 Minivan - 2WD Automatic 5-spd
## 16472 Minivan - 2WD Automatic 5-spd
## 16473 Minivan - 2WD Automatic 5-spd
## 16474 Minivan - 2WD Automatic 5-spd
## 16475 Minivan - 2WD Automatic 5-spd
## 16476 Minivan - 2WD Automatic 5-spd
## 16477 Minivan - 2WD Automatic 6-spd
## 16478 Minivan - 2WD Automatic 5-spd
## 16524 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16525 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16526 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16527 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16528 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16529 Sport Utility Vehicle - 2WD Automatic 5-spd
## 16535 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16536 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16537 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16538 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16539 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16540 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16541 Sport Utility Vehicle - 4WD Automatic 5-spd
## 16611 Standard Pickup Trucks 4WD Automatic 5-spd
## 16612 Standard Pickup Trucks 4WD Automatic 5-spd
## 16613 Standard Pickup Trucks 4WD Automatic 5-spd
## 16614 Standard Pickup Trucks 4WD Automatic 5-spd
## 16615 Standard Pickup Trucks 4WD Automatic 5-spd
## 16616 Standard Pickup Trucks 4WD Automatic 5-spd
## 16625 Two Seaters Manual 6-spd
## 16626 Two Seaters Manual 6-spd
## 16627 Two Seaters Manual 6-spd
## 16628 Two Seaters Manual 6-spd
## 16629 Two Seaters Manual 6-spd
## 30062 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30063 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30064 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30065 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30066 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30067 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30068 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30069 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30070 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30071 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30072 Sport Utility Vehicle - 2WD Automatic (S5)
## 30073 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30074 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30075 Sport Utility Vehicle - 2WD Automatic (S5)
## 30145 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30146 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30147 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30148 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30149 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30150 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30151 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30152 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30153 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30154 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30155 Sport Utility Vehicle - 4WD Automatic (S5)
## 30156 Sport Utility Vehicle - 4WD Automatic (S5)
## 30157 Sport Utility Vehicle - 4WD Automatic (S5)
## 30158 Sport Utility Vehicle - 4WD Automatic (S5)
## 30175 Large Cars Automatic (S5)
## 30176 Large Cars Automatic (S5)
## 30177 Large Cars Automatic (S5)
## 30178 Large Cars Automatic (S6)
## 30179 Large Cars Automatic (S6)
## 30180 Large Cars Automatic (S6)
## 30181 Large Cars Automatic (S6)
## 30294 Midsize Cars Automatic 5-spd
## 30295 Midsize Cars Manual 5-spd
## 30296 Midsize Cars Automatic 5-spd
## 30297 Midsize Cars Automatic 5-spd
## 30298 Midsize Cars Automatic 5-spd
## 30299 Midsize Cars Manual 5-spd
## 30300 Midsize Cars Automatic 5-spd
## 30301 Midsize Cars Automatic 5-spd
## 30302 Midsize Cars Automatic 5-spd
## 30303 Midsize Cars Manual 5-spd
## 30304 Midsize Cars Automatic (S6)
## 30305 Midsize Cars Automatic 5-spd
## 30306 Midsize Cars Manual 5-spd
## 30307 Midsize Cars Automatic (S6)
## 30308 Midsize Cars Automatic (S6)
## 30309 Midsize Cars Automatic 5-spd
## 30310 Midsize Cars Manual 5-spd
## 30311 Midsize Cars Manual 6-spd
## 30312 Midsize Cars Automatic (S6)
## 30313 Midsize Cars Automatic (S6)
## 30314 Midsize Cars Manual 6-spd
## 30315 Midsize Cars Automatic (S6)
## 30316 Midsize Cars Automatic (S6)
## 30326 Midsize Cars Automatic (variable gear ratios)
## 30327 Midsize Cars Automatic (variable gear ratios)
## 30328 Midsize Cars Automatic (variable gear ratios)
## 30329 Midsize Cars Automatic (variable gear ratios)
## 30330 Midsize Cars Automatic (variable gear ratios)
## 30359 Compact Cars Automatic 4-spd
## 30360 Compact Cars Manual 5-spd
## 30361 Compact Cars Automatic (S5)
## 30362 Compact Cars Manual 5-spd
## 30363 Compact Cars Automatic (S5)
## 30364 Compact Cars Automatic (S5)
## 30365 Compact Cars Manual 5-spd
## 30366 Compact Cars Automatic (S5)
## 30367 Compact Cars Automatic (S5)
## 30368 Compact Cars Manual 5-spd
## 30369 Compact Cars Automatic (S5)
## 30370 Compact Cars Automatic (S5)
## 30380 Compact Cars Automatic (S5)
## 30381 Compact Cars Automatic (S5)
## 30382 Compact Cars Automatic (S5)
## 30383 Compact Cars Automatic (S5)
## 30501 Subcompact Cars Automatic 4-spd
## 30502 Subcompact Cars Manual 5-spd
## 30503 Subcompact Cars Manual 6-spd
## 30504 Subcompact Cars Automatic (S4)
## 30608 Compact Cars Automatic 4-spd
## 30609 Compact Cars Manual 5-spd
## 30610 Compact Cars Manual 6-spd
## 30611 Compact Cars Automatic 4-spd
## 30612 Compact Cars Manual 5-spd
## 30613 Compact Cars Manual 6-spd
## 30614 Compact Cars Automatic 4-spd
## 30615 Compact Cars Manual 5-spd
## 30616 Compact Cars Automatic 4-spd
## 30617 Compact Cars Manual 5-spd
## 30618 Compact Cars Manual 5-spd
## 30619 Compact Cars Automatic (S5)
## 30620 Compact Cars Automatic 4-spd
## 30621 Compact Cars Manual 5-spd
## 30622 Compact Cars Automatic 4-spd
## 30623 Compact Cars Manual 5-spd
## 30624 Compact Cars Manual 5-spd
## 30625 Compact Cars Automatic (S5)
## 30626 Compact Cars Automatic 4-spd
## 30627 Compact Cars Manual 5-spd
## 30628 Compact Cars Manual 5-spd
## 30629 Compact Cars Automatic (S5)
## 30708 Compact Cars Automatic 4-spd
## 30709 Compact Cars Manual 5-spd
## 30710 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30711 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30712 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30713 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30714 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30718 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30719 Sport Utility Vehicle - 4WD Manual 6-spd
## 30720 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30721 Sport Utility Vehicle - 4WD Manual 6-spd
## 30722 Sport Utility Vehicle - 4WD Manual 6-spd
## 30723 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30724 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30725 Sport Utility Vehicle - 4WD Manual 6-spd
## 30726 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30727 Sport Utility Vehicle - 4WD Manual 6-spd
## 30742 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30743 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30744 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30745 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30746 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30747 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30748 Sport Utility Vehicle - 2WD Automatic (S5)
## 30749 Sport Utility Vehicle - 2WD Automatic (S5)
## 30750 Sport Utility Vehicle - 2WD Automatic (S6)
## 30751 Sport Utility Vehicle - 2WD Automatic (S6)
## 30752 Sport Utility Vehicle - 2WD Automatic (S5)
## 30753 Sport Utility Vehicle - 2WD Automatic (S6)
## 30754 Sport Utility Vehicle - 2WD Automatic (S5)
## 30769 Sport Utility Vehicle - 4WD Automatic 4-spd
## 30770 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30771 Sport Utility Vehicle - 4WD Automatic 4-spd
## 30772 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30773 Sport Utility Vehicle - 4WD Automatic 4-spd
## 30774 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30775 Sport Utility Vehicle - 4WD Automatic (S5)
## 30776 Sport Utility Vehicle - 4WD Automatic (S5)
## 30777 Sport Utility Vehicle - 4WD Automatic (S5)
## 30778 Sport Utility Vehicle - 4WD Automatic (S5)
## 30782 Sport Utility Vehicle - 2WD Automatic (variable gear ratios)
## 30783 Sport Utility Vehicle - 2WD Automatic (variable gear ratios)
## 30784 Sport Utility Vehicle - 4WD Automatic (variable gear ratios)
## 30785 Sport Utility Vehicle - 4WD Automatic (variable gear ratios)
## 30786 Sport Utility Vehicle - 4WD Automatic (variable gear ratios)
## 30787 Sport Utility Vehicle - 4WD Automatic (variable gear ratios)
## 30788 Sport Utility Vehicle - 4WD Automatic (variable gear ratios)
## 30789 Sport Utility Vehicle - 4WD Automatic (variable gear ratios)
## 30815 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30816 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30817 Sport Utility Vehicle - 4WD Automatic 5-spd
## 30818 Sport Utility Vehicle - 4WD Automatic (S6)
## 30819 Sport Utility Vehicle - 4WD Automatic (S6)
## 30820 Sport Utility Vehicle - 4WD Automatic (S6)
## 30821 Sport Utility Vehicle - 4WD Automatic (S6)
## 30859 Two Seaters Manual 5-spd
## 30860 Two Seaters Manual 6-spd
## 30870 Small Station Wagons Automatic 4-spd
## 30871 Small Station Wagons Automatic 4-spd
## 30872 Small Station Wagons Manual 5-spd
## 30873 Small Station Wagons Manual 6-spd
## 30874 Small Station Wagons Automatic 4-spd
## 30875 Small Station Wagons Automatic 4-spd
## 30876 Small Station Wagons Manual 5-spd
## 30877 Small Station Wagons Manual 6-spd
## 30878 Small Station Wagons Automatic 4-spd
## 30879 Small Station Wagons Manual 5-spd
## 30880 Small Station Wagons Automatic 4-spd
## 30881 Small Station Wagons Manual 5-spd
## 30882 Small Station Wagons Automatic 4-spd
## 30883 Small Station Wagons Manual 5-spd
## 30884 Small Station Wagons Automatic (S5)
## 30885 Small Station Wagons Automatic 4-spd
## 30886 Small Station Wagons Manual 5-spd
## 30887 Small Station Wagons Automatic 4-spd
## 30888 Small Station Wagons Manual 5-spd
## 30889 Small Station Wagons Automatic 4-spd
## 30890 Small Station Wagons Manual 5-spd
## 30891 Small Station Wagons Automatic (S5)
## 30892 Small Station Wagons Automatic 4-spd
## 30893 Small Station Wagons Manual 5-spd
## 30894 Small Station Wagons Automatic 4-spd
## 30895 Small Station Wagons Manual 5-spd
## 30896 Small Station Wagons Automatic (S5)
## 30956 Midsize Cars Automatic (variable gear ratios)
## 30957 Midsize Cars Automatic (variable gear ratios)
## 30958 Midsize Cars Automatic (variable gear ratios)
## 30959 Midsize Cars Automatic (variable gear ratios)
## 30960 Midsize Cars Automatic (variable gear ratios)
## 30961 Midsize Cars Automatic (variable gear ratios)
## 30962 Midsize Cars Automatic (variable gear ratios)
## 30994 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30995 Sport Utility Vehicle - 2WD Manual 5-spd
## 30996 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30997 Sport Utility Vehicle - 2WD Automatic 5-spd
## 30998 Sport Utility Vehicle - 2WD Automatic 4-spd
## 30999 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31000 Sport Utility Vehicle - 2WD Automatic 4-spd
## 31001 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31002 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31003 Sport Utility Vehicle - 2WD Automatic 4-spd
## 31004 Sport Utility Vehicle - 2WD Automatic 4-spd
## 31005 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31006 Sport Utility Vehicle - 2WD Automatic 4-spd
## 31007 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31029 Sport Utility Vehicle - 4WD Automatic 4-spd
## 31030 Sport Utility Vehicle - 4WD Manual 5-spd
## 31031 Sport Utility Vehicle - 4WD Automatic 4-spd
## 31032 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31033 Sport Utility Vehicle - 4WD Automatic 4-spd
## 31034 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31035 Sport Utility Vehicle - 4WD Automatic 4-spd
## 31036 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31037 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31038 Sport Utility Vehicle - 4WD Automatic 4-spd
## 31039 Sport Utility Vehicle - 4WD Automatic 4-spd
## 31040 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31041 Sport Utility Vehicle - 4WD Automatic 4-spd
## 31042 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31072 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31073 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31074 Sport Utility Vehicle - 2WD Automatic 5-spd
## 31075 Sport Utility Vehicle - 2WD Automatic (S5)
## 31076 Sport Utility Vehicle - 2WD Automatic (S6)
## 31077 Sport Utility Vehicle - 2WD Automatic (S5)
## 31078 Sport Utility Vehicle - 2WD Automatic (S6)
## 31079 Sport Utility Vehicle - 2WD Automatic (S6)
## 31080 Sport Utility Vehicle - 2WD Automatic (S6)
## 31081 Sport Utility Vehicle - 2WD Automatic (S6)
## 31082 Sport Utility Vehicle - 2WD Automatic (S6)
## 31091 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31092 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31093 Sport Utility Vehicle - 4WD Automatic 5-spd
## 31094 Sport Utility Vehicle - 4WD Automatic (S5)
## 31095 Sport Utility Vehicle - 4WD Automatic (S6)
## 31096 Sport Utility Vehicle - 4WD Automatic (S5)
## 31097 Sport Utility Vehicle - 4WD Automatic (S6)
## 31098 Sport Utility Vehicle - 4WD Automatic (S6)
## 31099 Sport Utility Vehicle - 4WD Automatic (S6)
## 31100 Sport Utility Vehicle - 4WD Automatic (S6)
## 31101 Sport Utility Vehicle - 4WD Automatic (S6)
## 31102 Sport Utility Vehicle - 4WD Automatic (S6)
## 31107 Sport Utility Vehicle - 4WD Automatic (S6)
## 31108 Sport Utility Vehicle - 4WD Automatic (S6)
## 31119 Minivan - 2WD Automatic 5-spd
## 31120 Minivan - 2WD Automatic 5-spd
## 31121 Minivan - 2WD Automatic 5-spd
## 31122 Minivan - 2WD Automatic 5-spd
## 31123 Minivan - 2WD Automatic 5-spd
## 31124 Minivan - 2WD Automatic 5-spd
## 31125 Minivan - 2WD Automatic (S6)
## 31126 Minivan - 2WD Automatic (S6)
## 31133 Minivan - 4WD Automatic 5-spd
## 31134 Minivan - 4WD Automatic 5-spd
## 31135 Minivan - 4WD Automatic 5-spd
## 31136 Minivan - 4WD Automatic 5-spd
## 31137 Minivan - 4WD Automatic 5-spd
## 31138 Minivan - 4WD Automatic 5-spd
## 31139 Minivan - 4WD Automatic (S6)
## 31273 Standard Pickup Trucks 2WD Automatic 4-spd
## 31274 Standard Pickup Trucks 2WD Manual 5-spd
## 31275 Standard Pickup Trucks 2WD Automatic 5-spd
## 31276 Standard Pickup Trucks 2WD Manual 6-spd
## 31277 Standard Pickup Trucks 2WD Automatic 4-spd
## 31278 Standard Pickup Trucks 2WD Manual 5-spd
## 31279 Standard Pickup Trucks 2WD Automatic 5-spd
## 31280 Standard Pickup Trucks 2WD Manual 6-spd
## 31281 Standard Pickup Trucks 2WD Automatic 4-spd
## 31282 Standard Pickup Trucks 2WD Manual 5-spd
## 31283 Standard Pickup Trucks 2WD Automatic 5-spd
## 31284 Standard Pickup Trucks 2WD Manual 6-spd
## 31285 Small Pickup Trucks 2WD Automatic 5-spd
## 31286 Small Pickup Trucks 2WD Manual 6-spd
## 31287 Small Pickup Trucks 2WD Automatic 4-spd
## 31288 Small Pickup Trucks 2WD Manual 5-spd
## 31289 Small Pickup Trucks 2WD Manual 5-spd
## 31290 Small Pickup Trucks 2WD Automatic 4-spd
## 31291 Small Pickup Trucks 2WD Manual 6-spd
## 31292 Small Pickup Trucks 2WD Automatic 5-spd
## 31293 Small Pickup Trucks 2WD Automatic 4-spd
## 31294 Small Pickup Trucks 2WD Manual 5-spd
## 31295 Small Pickup Trucks 2WD Automatic 5-spd
## 31296 Small Pickup Trucks 2WD Manual 6-spd
## 31297 Small Pickup Trucks 2WD Automatic 4-spd
## 31298 Small Pickup Trucks 2WD Manual 5-spd
## 31299 Small Pickup Trucks 2WD Automatic 5-spd
## 31300 Small Pickup Trucks 2WD Manual 6-spd
## 31353 Standard Pickup Trucks 4WD Manual 5-spd
## 31354 Standard Pickup Trucks 4WD Automatic 5-spd
## 31355 Standard Pickup Trucks 4WD Manual 6-spd
## 31356 Standard Pickup Trucks 4WD Manual 5-spd
## 31357 Standard Pickup Trucks 4WD Automatic 5-spd
## 31358 Standard Pickup Trucks 4WD Manual 6-spd
## 31359 Standard Pickup Trucks 4WD Manual 5-spd
## 31360 Standard Pickup Trucks 4WD Automatic 5-spd
## 31361 Standard Pickup Trucks 4WD Manual 6-spd
## 31362 Small Pickup Trucks 4WD Automatic 5-spd
## 31363 Small Pickup Trucks 4WD Manual 6-spd
## 31364 Small Pickup Trucks 4WD Manual 5-spd
## 31365 Small Pickup Trucks 4WD Manual 5-spd
## 31366 Small Pickup Trucks 4WD Manual 6-spd
## 31367 Small Pickup Trucks 4WD Automatic 5-spd
## 31368 Small Pickup Trucks 4WD Manual 5-spd
## 31369 Small Pickup Trucks 4WD Automatic 5-spd
## 31370 Small Pickup Trucks 4WD Manual 6-spd
## 31371 Small Pickup Trucks 4WD Automatic 4-spd
## 31372 Small Pickup Trucks 4WD Manual 5-spd
## 31373 Small Pickup Trucks 4WD Automatic 5-spd
## 31374 Small Pickup Trucks 4WD Manual 6-spd
## 31608 Standard Pickup Trucks 2WD Automatic 5-spd
## 31609 Standard Pickup Trucks 2WD Manual 6-spd
## 31610 Standard Pickup Trucks 2WD Automatic 5-spd
## 31611 Standard Pickup Trucks 2WD Automatic 5-spd
## 31612 Standard Pickup Trucks 2WD Manual 6-spd
## 31613 Standard Pickup Trucks 2WD Automatic 5-spd
## 31614 Standard Pickup Trucks 2WD Automatic (S5)
## 31615 Standard Pickup Trucks 2WD Automatic (S5)
## 31616 Standard Pickup Trucks 2WD Automatic (S6)
## 31617 Standard Pickup Trucks 2WD Automatic (S5)
## 31618 Standard Pickup Trucks 2WD Automatic (S5)
## 31619 Standard Pickup Trucks 2WD Automatic (S6)
## 31620 Standard Pickup Trucks 2WD Automatic (S5)
## 31621 Standard Pickup Trucks 2WD Automatic (S5)
## 31622 Standard Pickup Trucks 2WD Automatic (S6)
## 31623 Standard Pickup Trucks 2WD Automatic (S5)
## 31624 Standard Pickup Trucks 2WD Automatic (S6)
## 31625 Standard Pickup Trucks 2WD Automatic (S6)
## 31626 Standard Pickup Trucks 2WD Automatic (S6)
## 31627 Standard Pickup Trucks 2WD Automatic (S6)
## 31628 Standard Pickup Trucks 2WD Automatic (S5)
## 31653 Standard Pickup Trucks 4WD Automatic 5-spd
## 31654 Standard Pickup Trucks 4WD Automatic 5-spd
## 31655 Standard Pickup Trucks 4WD Automatic (S5)
## 31656 Standard Pickup Trucks 4WD Automatic (S6)
## 31657 Standard Pickup Trucks 4WD Automatic (S5)
## 31658 Standard Pickup Trucks 4WD Automatic (S6)
## 31659 Standard Pickup Trucks 4WD Automatic (S5)
## 31660 Standard Pickup Trucks 4WD Automatic (S6)
## 31661 Standard Pickup Trucks 4WD Automatic (S6)
## 31662 Standard Pickup Trucks 4WD Automatic (S6)
## 31663 Standard Pickup Trucks 4WD Automatic (S6)
## 31664 Standard Pickup Trucks 4WD Automatic (S6)
## 31665 Standard Pickup Trucks 4WD Automatic (S6)
## 31672 Standard Pickup Trucks 4WD Automatic (S6)
## 31673 Standard Pickup Trucks 4WD Automatic (S6)
## 31704 Sport Utility Vehicle - 2WD Automatic (S6)
## 31705 Sport Utility Vehicle - 2WD Automatic (S6)
## 31706 Sport Utility Vehicle - 2WD Automatic (S6)
## 31707 Sport Utility Vehicle - 2WD Automatic (S6)
## 31708 Sport Utility Vehicle - 2WD Automatic (S6)
## 31709 Sport Utility Vehicle - 2WD Automatic (S6)
## 31718 Sport Utility Vehicle - 4WD Automatic (S6)
## 31719 Sport Utility Vehicle - 4WD Automatic (S6)
## 31720 Sport Utility Vehicle - 4WD Automatic (S6)
## 31721 Sport Utility Vehicle - 4WD Automatic (S6)
## 31722 Sport Utility Vehicle - 4WD Automatic (S6)
## 31723 Sport Utility Vehicle - 4WD Automatic (S6)
## 31728 Subcompact Cars Automatic 4-spd
## 31729 Subcompact Cars Manual 5-spd
## 31730 Subcompact Cars Automatic 4-spd
## 31731 Subcompact Cars Manual 5-spd
## 31732 Subcompact Cars Manual 5-spd
## 31733 Subcompact Cars Automatic 4-spd
## 31734 Subcompact Cars Automatic 4-spd
## 31735 Subcompact Cars Manual 5-spd
## 31736 Subcompact Cars Automatic 4-spd
## 31737 Subcompact Cars Manual 5-spd
## drive cyl displ fuel hwy cty
## 15928 Front-Wheel Drive 4 2.4 Regular 31 21
## 15929 Front-Wheel Drive 4 2.4 Regular 31 23
## 15930 Front-Wheel Drive 6 3.0 Regular 28 19
## 15931 Front-Wheel Drive 6 3.0 Regular 27 18
## 15932 Front-Wheel Drive 4 2.4 Regular 31 21
## 15933 Front-Wheel Drive 4 2.4 Regular 31 23
## 15934 Front-Wheel Drive 6 3.0 Regular 26 18
## 15935 Front-Wheel Drive 6 3.0 Regular 27 18
## 15936 Front-Wheel Drive 4 2.4 Regular 31 21
## 15937 Front-Wheel Drive 4 2.4 Regular 31 23
## 15938 Front-Wheel Drive 6 3.0 Regular 26 18
## 15939 Front-Wheel Drive 6 3.0 Regular 27 18
## 15940 Front-Wheel Drive 4 2.4 Regular 31 21
## 15941 Front-Wheel Drive 4 2.4 Regular 31 22
## 15942 Front-Wheel Drive 6 3.5 Regular 29 19
## 15943 Front-Wheel Drive 4 2.4 Regular 31 22
## 15944 Front-Wheel Drive 4 2.4 Regular 30 21
## 15945 Front-Wheel Drive 6 3.5 Regular 29 19
## 15946 Front-Wheel Drive 4 2.4 Regular 31 21
## 15947 Front-Wheel Drive 4 2.4 Regular 31 22
## 15948 Front-Wheel Drive 6 3.5 Regular 29 19
## 15949 Front-Wheel Drive 4 2.4 Regular 33 23
## 15950 Front-Wheel Drive 4 2.4 Regular 34 23
## 15951 Front-Wheel Drive 6 3.5 Regular 30 20
## 15967 Front-Wheel Drive 4 2.4 Regular 30 21
## 15968 Front-Wheel Drive 4 2.4 Regular 31 22
## 15969 Front-Wheel Drive 6 3.5 Regular 28 19
## 15970 Front-Wheel Drive 6 3.5 Regular 25 17
## 15971 Front-Wheel Drive 4 2.4 Regular 31 22
## 15972 Front-Wheel Drive 4 2.4 Regular 30 21
## 15973 Front-Wheel Drive 6 3.5 Regular 28 19
## 15974 Front-Wheel Drive 6 3.5 Regular 25 17
## 15975 Front-Wheel Drive 4 2.4 Regular 31 21
## 15976 Front-Wheel Drive 4 2.4 Regular 31 22
## 15977 Front-Wheel Drive 6 3.5 Regular 28 19
## 15978 Front-Wheel Drive 6 3.5 Regular 25 17
## 15979 Front-Wheel Drive 4 2.4 Regular 32 23
## 15980 Front-Wheel Drive 4 2.4 Regular 33 22
## 15981 Front-Wheel Drive 6 3.5 Regular 26 17
## 15982 Front-Wheel Drive 6 3.5 Regular 29 19
## 15987 Front-Wheel Drive 6 3.5 Regular 27 18
## 15988 Front-Wheel Drive 6 3.5 Regular 27 18
## 15989 All-Wheel Drive 6 3.5 Regular 25 17
## 15990 All-Wheel Drive 6 3.5 Regular 26 18
## 15991 Front-Wheel Drive 6 3.0 Regular 33 25
## 15992 Front-Wheel Drive 6 3.0 Regular 31 22
## 15993 Front-Wheel Drive 6 3.0 Regular 32 24
## 16025 Front-Wheel Drive 4 2.4 Regular 26 20
## 16026 Front-Wheel Drive 4 2.4 Regular 26 20
## 16027 Front-Wheel Drive 4 2.4 Regular 27 20
## 16028 Front-Wheel Drive 4 2.4 Regular 27 20
## 16029 Front-Wheel Drive 4 2.4 Regular 27 20
## 16030 Front-Wheel Drive 4 2.4 Regular 28 21
## 16031 Front-Wheel Drive 4 2.4 Regular 28 21
## 16051 4-Wheel or All-Wheel Drive 4 2.4 Regular 25 20
## 16052 4-Wheel or All-Wheel Drive 4 2.4 Regular 24 19
## 16053 4-Wheel or All-Wheel Drive 4 2.4 Regular 25 20
## 16054 4-Wheel or All-Wheel Drive 4 2.4 Regular 24 19
## 16055 4-Wheel or All-Wheel Drive 4 2.4 Regular 26 19
## 16056 4-Wheel or All-Wheel Drive 4 2.4 Regular 26 20
## 16057 4-Wheel or All-Wheel Drive 4 2.4 Regular 26 20
## 16058 All-Wheel Drive 4 2.4 Regular 27 21
## 16059 All-Wheel Drive 4 2.4 Regular 27 21
## 16063 Front-Wheel Drive 4 1.5 Regular 37 31
## 16064 Front-Wheel Drive 4 1.5 Regular 39 35
## 16178 Front-Wheel Drive 4 1.7 Regular 36 29
## 16179 Front-Wheel Drive 4 1.7 Regular 34 25
## 16180 Front-Wheel Drive 4 1.7 Regular 35 26
## 16181 Front-Wheel Drive 4 1.7 Regular 34 27
## 16182 Front-Wheel Drive 4 1.7 Regular 39 31
## 16183 Front-Wheel Drive 4 1.7 Regular 34 27
## 16184 Front-Wheel Drive 4 2.0 Regular 28 22
## 16185 Front-Wheel Drive 4 1.8 Regular 36 26
## 16186 Front-Wheel Drive 4 1.8 Regular 34 26
## 16187 Front-Wheel Drive 4 2.0 Premium 29 20
## 16188 Front-Wheel Drive 4 1.8 Regular 36 25
## 16189 Front-Wheel Drive 4 1.8 Regular 34 26
## 16190 Front-Wheel Drive 4 2.0 Premium 29 20
## 16191 Front-Wheel Drive 4 1.8 Regular 36 25
## 16192 Front-Wheel Drive 4 1.8 Regular 34 26
## 16193 Front-Wheel Drive 4 2.0 Premium 29 21
## 16194 Front-Wheel Drive 4 1.8 Regular 34 26
## 16195 Front-Wheel Drive 4 1.8 Regular 36 25
## 16196 Front-Wheel Drive 4 2.0 Premium 29 21
## 16197 Front-Wheel Drive 4 1.8 Regular 36 25
## 16198 Front-Wheel Drive 4 1.8 Regular 34 26
## 16199 Front-Wheel Drive 4 2.0 Premium 29 21
## 16200 Front-Wheel Drive 4 1.8 Regular 34 26
## 16201 Front-Wheel Drive 4 1.8 Regular 36 25
## 16202 Front-Wheel Drive 4 2.0 Premium 29 21
## 16219 Front-Wheel Drive 4 1.7 CNG 31 26
## 16220 Front-Wheel Drive 4 1.8 CNG 36 24
## 16221 Front-Wheel Drive 4 1.8 CNG 36 24
## 16222 Front-Wheel Drive 4 1.8 CNG 36 24
## 16223 Front-Wheel Drive 4 1.8 CNG 36 24
## 16224 Front-Wheel Drive 4 1.8 CNG 36 24
## 16225 Front-Wheel Drive 4 1.8 CNG 36 24
## 16308 Front-Wheel Drive 4 1.3 Regular 43 39
## 16309 Front-Wheel Drive 4 1.3 Regular 42 39
## 16310 Front-Wheel Drive 4 1.3 Regular 45 37
## 16311 Front-Wheel Drive 4 1.3 Regular 45 38
## 16312 Front-Wheel Drive 4 1.3 Regular 45 40
## 16313 Front-Wheel Drive 4 1.3 Regular 45 40
## 16314 Front-Wheel Drive 4 1.3 Regular 45 40
## 16315 Front-Wheel Drive 4 1.3 Regular 45 40
## 16316 Front-Wheel Drive 4 1.3 Regular 45 40
## 16317 Front-Wheel Drive 4 1.3 Regular 43 40
## 16374 Front-Wheel Drive 4 2.4 Regular 24 19
## 16375 Front-Wheel Drive 4 2.4 Regular 23 19
## 16376 Front-Wheel Drive 4 2.4 Regular 24 19
## 16377 Front-Wheel Drive 4 2.4 Regular 23 19
## 16378 Front-Wheel Drive 4 2.4 Regular 25 20
## 16379 Front-Wheel Drive 4 2.4 Regular 23 18
## 16380 Front-Wheel Drive 4 2.4 Regular 25 20
## 16381 Front-Wheel Drive 4 2.4 Regular 23 18
## 16382 Front-Wheel Drive 4 2.4 Regular 23 18
## 16383 Front-Wheel Drive 4 2.4 Regular 25 20
## 16384 Front-Wheel Drive 4 2.4 Regular 25 20
## 16385 Front-Wheel Drive 4 2.4 Regular 23 18
## 16386 Front-Wheel Drive 4 2.4 Regular 25 20
## 16391 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 19
## 16392 4-Wheel or All-Wheel Drive 4 2.4 Regular 22 18
## 16393 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 19
## 16394 4-Wheel or All-Wheel Drive 4 2.4 Regular 22 18
## 16395 4-Wheel or All-Wheel Drive 4 2.4 Regular 24 19
## 16396 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 18
## 16397 4-Wheel or All-Wheel Drive 4 2.4 Regular 24 19
## 16398 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 18
## 16399 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 18
## 16400 4-Wheel or All-Wheel Drive 4 2.4 Regular 24 19
## 16401 All-Wheel Drive 4 2.4 Regular 24 19
## 16402 All-Wheel Drive 4 2.4 Regular 23 18
## 16403 All-Wheel Drive 4 2.4 Regular 24 19
## 16404 All-Wheel Drive 4 2.4 Regular 23 18
## 16405 Front-Wheel Drive 4 1.5 Regular 35 27
## 16406 Front-Wheel Drive 4 1.5 Regular 34 28
## 16407 Front-Wheel Drive 4 1.5 Regular 34 27
## 16408 Front-Wheel Drive 4 1.5 Regular 34 27
## 16409 Front-Wheel Drive 4 1.5 Regular 34 28
## 16410 Front-Wheel Drive 4 1.5 Regular 33 27
## 16411 Front-Wheel Drive 4 1.5 Regular 35 28
## 16412 Front-Wheel Drive 4 1.5 Regular 33 27
## 16413 Front-Wheel Drive 4 1.5 Regular 33 27
## 16414 Front-Wheel Drive 4 1.5 Regular 35 28
## 16415 Front-Wheel Drive 4 1.5 Regular 33 27
## 16416 Front-Wheel Drive 4 1.5 Regular 33 27
## 16417 Front-Wheel Drive 4 1.5 Regular 35 28
## 16418 Front-Wheel Drive 4 1.5 Regular 33 27
## 16419 Front-Wheel Drive 4 1.5 Regular 33 27
## 16441 Front-Wheel Drive 3 1.0 Regular 49 45
## 16442 Front-Wheel Drive 3 1.0 Regular 58 48
## 16443 Front-Wheel Drive 3 1.0 Regular 49 45
## 16444 Front-Wheel Drive 3 1.0 Regular 58 48
## 16445 Front-Wheel Drive 4 1.3 Regular 43 40
## 16446 Front-Wheel Drive 4 1.3 Regular 43 40
## 16447 Front-Wheel Drive 4 1.3 Regular 43 40
## 16448 Front-Wheel Drive 4 1.3 Regular 43 40
## 16465 Front-Wheel Drive 6 3.5 Regular 26 17
## 16466 Front-Wheel Drive 6 3.5 Regular 23 17
## 16467 Front-Wheel Drive 6 3.5 Regular 23 17
## 16468 Front-Wheel Drive 6 3.5 Regular 26 17
## 16469 Front-Wheel Drive 6 3.5 Regular 23 16
## 16470 Front-Wheel Drive 6 3.5 Regular 24 17
## 16471 Front-Wheel Drive 6 3.5 Regular 23 16
## 16472 Front-Wheel Drive 6 3.5 Regular 25 17
## 16473 Front-Wheel Drive 6 3.5 Regular 23 16
## 16474 Front-Wheel Drive 6 3.5 Regular 25 17
## 16475 Front-Wheel Drive 6 3.5 Regular 23 16
## 16476 Front-Wheel Drive 6 3.5 Regular 25 17
## 16477 Front-Wheel Drive 6 3.5 Regular 28 19
## 16478 Front-Wheel Drive 6 3.5 Regular 27 18
## 16524 Front-Wheel Drive 6 3.5 Regular 22 16
## 16525 Front-Wheel Drive 6 3.5 Regular 22 16
## 16526 Front-Wheel Drive 6 3.5 Regular 22 16
## 16527 Front-Wheel Drive 6 3.5 Regular 23 17
## 16528 Front-Wheel Drive 6 3.5 Regular 23 17
## 16529 Front-Wheel Drive 6 3.5 Regular 23 17
## 16535 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16536 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16537 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16538 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16539 4-Wheel or All-Wheel Drive 6 3.5 Regular 22 16
## 16540 All-Wheel Drive 6 3.5 Regular 22 16
## 16541 All-Wheel Drive 6 3.5 Regular 22 16
## 16611 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16612 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16613 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16614 4-Wheel or All-Wheel Drive 6 3.5 Regular 20 15
## 16615 All-Wheel Drive 6 3.5 Regular 20 15
## 16616 All-Wheel Drive 6 3.5 Regular 20 15
## 16625 Rear-Wheel Drive 4 2.2 Premium 23 17
## 16626 Rear-Wheel Drive 4 2.2 Premium 24 18
## 16627 Rear-Wheel Drive 4 2.2 Premium 24 18
## 16628 Rear-Wheel Drive 4 2.2 Premium 25 18
## 16629 Rear-Wheel Drive 4 2.2 Premium 25 18
## 30062 Rear-Wheel Drive 6 4.0 Regular 20 16
## 30063 Rear-Wheel Drive 8 4.7 Regular 18 15
## 30064 Rear-Wheel Drive 6 4.0 Regular 20 16
## 30065 Rear-Wheel Drive 8 4.7 Regular 18 15
## 30066 Rear-Wheel Drive 6 4.0 Regular 21 16
## 30067 Rear-Wheel Drive 8 4.7 Regular 19 15
## 30068 Rear-Wheel Drive 6 4.0 Regular 21 16
## 30069 Rear-Wheel Drive 8 4.7 Regular 19 15
## 30070 Rear-Wheel Drive 6 4.0 Regular 21 16
## 30071 Rear-Wheel Drive 8 4.7 Regular 19 15
## 30072 Rear-Wheel Drive 6 4.0 Regular 23 17
## 30073 Rear-Wheel Drive 4 2.7 Regular 23 18
## 30074 Rear-Wheel Drive 4 2.7 Regular 21 18
## 30075 Rear-Wheel Drive 6 4.0 Regular 23 17
## 30145 4-Wheel or All-Wheel Drive 6 4.0 Regular 19 15
## 30146 4-Wheel or All-Wheel Drive 8 4.7 Regular 18 14
## 30147 4-Wheel or All-Wheel Drive 6 4.0 Regular 19 15
## 30148 4-Wheel or All-Wheel Drive 8 4.7 Regular 18 14
## 30149 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 30150 4-Wheel or All-Wheel Drive 8 4.7 Regular 18 14
## 30151 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 30152 4-Wheel or All-Wheel Drive 8 4.7 Regular 17 14
## 30153 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 30154 4-Wheel or All-Wheel Drive 8 4.7 Regular 17 14
## 30155 4-Wheel Drive 6 4.0 Regular 22 17
## 30156 Part-time 4-Wheel Drive 6 4.0 Regular 22 17
## 30157 4-Wheel Drive 6 4.0 Regular 22 17
## 30158 Part-time 4-Wheel Drive 6 4.0 Regular 22 17
## 30175 Front-Wheel Drive 6 3.5 Regular 28 19
## 30176 Front-Wheel Drive 6 3.5 Regular 28 20
## 30177 Front-Wheel Drive 6 3.5 Regular 28 20
## 30178 Front-Wheel Drive 6 3.5 Regular 28 19
## 30179 Front-Wheel Drive 6 3.5 Regular 28 19
## 30180 Front-Wheel Drive 6 3.5 Regular 28 19
## 30181 Front-Wheel Drive 6 3.5 Regular 29 20
## 30294 Front-Wheel Drive 4 2.4 Regular 31 21
## 30295 Front-Wheel Drive 4 2.4 Regular 30 21
## 30296 Front-Wheel Drive 6 3.0 Regular 26 18
## 30297 Front-Wheel Drive 6 3.3 Regular 27 18
## 30298 Front-Wheel Drive 4 2.4 Regular 31 21
## 30299 Front-Wheel Drive 4 2.4 Regular 30 21
## 30300 Front-Wheel Drive 6 3.0 Regular 26 18
## 30301 Front-Wheel Drive 6 3.3 Regular 27 18
## 30302 Front-Wheel Drive 4 2.4 Regular 30 21
## 30303 Front-Wheel Drive 4 2.4 Regular 31 21
## 30304 Front-Wheel Drive 6 3.5 Regular 28 19
## 30305 Front-Wheel Drive 4 2.4 Regular 31 21
## 30306 Front-Wheel Drive 4 2.4 Regular 31 21
## 30307 Front-Wheel Drive 6 3.5 Regular 28 19
## 30308 Front-Wheel Drive 6 3.5 Regular 28 19
## 30309 Front-Wheel Drive 4 2.4 Regular 31 21
## 30310 Front-Wheel Drive 4 2.4 Regular 31 21
## 30311 Front-Wheel Drive 4 2.5 Regular 33 22
## 30312 Front-Wheel Drive 4 2.5 Regular 32 22
## 30313 Front-Wheel Drive 6 3.5 Regular 28 19
## 30314 Front-Wheel Drive 4 2.5 Regular 33 22
## 30315 Front-Wheel Drive 4 2.5 Regular 32 22
## 30316 Front-Wheel Drive 6 3.5 Regular 29 20
## 30326 Front-Wheel Drive 4 2.4 Regular 34 33
## 30327 Front-Wheel Drive 4 2.4 Regular 34 33
## 30328 Front-Wheel Drive 4 2.4 Regular 34 33
## 30329 Front-Wheel Drive 4 2.4 Regular 34 33
## 30330 Front-Wheel Drive 4 2.4 Regular 35 31
## 30359 Front-Wheel Drive 4 2.4 Regular 29 20
## 30360 Front-Wheel Drive 4 2.4 Regular 30 21
## 30361 Front-Wheel Drive 6 3.3 Regular 27 18
## 30362 Front-Wheel Drive 4 2.4 Regular 30 21
## 30363 Front-Wheel Drive 4 2.4 Regular 30 20
## 30364 Front-Wheel Drive 6 3.3 Regular 27 18
## 30365 Front-Wheel Drive 4 2.4 Regular 31 21
## 30366 Front-Wheel Drive 4 2.4 Regular 31 22
## 30367 Front-Wheel Drive 6 3.3 Regular 27 18
## 30368 Front-Wheel Drive 4 2.4 Regular 31 21
## 30369 Front-Wheel Drive 4 2.4 Regular 31 22
## 30370 Front-Wheel Drive 6 3.3 Regular 27 18
## 30380 Front-Wheel Drive 6 3.3 Regular 26 18
## 30381 Front-Wheel Drive 6 3.3 Regular 26 18
## 30382 Front-Wheel Drive 6 3.3 Regular 26 18
## 30383 Front-Wheel Drive 6 3.3 Regular 26 18
## 30501 Front-Wheel Drive 4 1.8 Regular 33 25
## 30502 Front-Wheel Drive 4 1.8 Regular 30 23
## 30503 Front-Wheel Drive 4 1.8 Premium 30 21
## 30504 Front-Wheel Drive 4 1.8 Premium 28 22
## 30608 Front-Wheel Drive 4 1.8 Regular 35 26
## 30609 Front-Wheel Drive 4 1.8 Regular 37 28
## 30610 Front-Wheel Drive 4 1.8 Premium 31 22
## 30611 Front-Wheel Drive 4 1.8 Regular 35 26
## 30612 Front-Wheel Drive 4 1.8 Regular 37 28
## 30613 Front-Wheel Drive 4 1.8 Premium 31 22
## 30614 Front-Wheel Drive 4 1.8 Regular 35 26
## 30615 Front-Wheel Drive 4 1.8 Regular 37 28
## 30616 Front-Wheel Drive 4 1.8 Regular 35 26
## 30617 Front-Wheel Drive 4 1.8 Regular 37 28
## 30618 Front-Wheel Drive 4 2.4 Regular 30 22
## 30619 Front-Wheel Drive 4 2.4 Regular 30 22
## 30620 Front-Wheel Drive 4 1.8 Regular 35 27
## 30621 Front-Wheel Drive 4 1.8 Regular 35 26
## 30622 Front-Wheel Drive 4 1.8 Regular 34 26
## 30623 Front-Wheel Drive 4 1.8 Regular 35 26
## 30624 Front-Wheel Drive 4 2.4 Regular 30 22
## 30625 Front-Wheel Drive 4 2.4 Regular 30 22
## 30626 Front-Wheel Drive 4 1.8 Regular 34 26
## 30627 Front-Wheel Drive 4 1.8 Regular 35 28
## 30628 Front-Wheel Drive 4 2.4 Regular 30 22
## 30629 Front-Wheel Drive 4 2.4 Regular 30 22
## 30708 Front-Wheel Drive 4 1.5 Regular 36 28
## 30709 Front-Wheel Drive 4 1.5 Regular 38 30
## 30710 Rear-Wheel Drive 6 4.0 Premium 21 17
## 30711 Rear-Wheel Drive 6 4.0 Premium 20 16
## 30712 Rear-Wheel Drive 6 4.0 Premium 21 17
## 30713 Rear-Wheel Drive 6 4.0 Regular 22 17
## 30714 Rear-Wheel Drive 6 4.0 Regular 22 17
## 30718 4-Wheel or All-Wheel Drive 6 4.0 Premium 19 15
## 30719 4-Wheel or All-Wheel Drive 6 4.0 Premium 18 15
## 30720 4-Wheel or All-Wheel Drive 6 4.0 Premium 20 16
## 30721 4-Wheel or All-Wheel Drive 6 4.0 Premium 18 15
## 30722 4-Wheel or All-Wheel Drive 6 4.0 Premium 19 14
## 30723 4-Wheel or All-Wheel Drive 6 4.0 Premium 20 16
## 30724 Part-time 4-Wheel Drive 6 4.0 Regular 21 17
## 30725 4-Wheel Drive 6 4.0 Regular 19 15
## 30726 Part-time 4-Wheel Drive 6 4.0 Regular 21 17
## 30727 4-Wheel Drive 6 4.0 Regular 20 15
## 30742 Front-Wheel Drive 4 2.4 Regular 25 19
## 30743 Front-Wheel Drive 6 3.3 Regular 23 17
## 30744 Front-Wheel Drive 4 2.4 Regular 25 19
## 30745 Front-Wheel Drive 6 3.3 Regular 23 17
## 30746 Front-Wheel Drive 4 2.4 Regular 25 19
## 30747 Front-Wheel Drive 6 3.3 Regular 23 17
## 30748 Front-Wheel Drive 6 3.5 Regular 24 18
## 30749 Front-Wheel Drive 6 3.5 Regular 24 18
## 30750 Front-Wheel Drive 4 2.7 Regular 27 20
## 30751 Front-Wheel Drive 4 2.7 Regular 27 20
## 30752 Front-Wheel Drive 6 3.5 Regular 24 18
## 30753 Front-Wheel Drive 4 2.7 Regular 25 20
## 30754 Front-Wheel Drive 6 3.5 Regular 24 18
## 30769 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 19
## 30770 4-Wheel or All-Wheel Drive 6 3.3 Regular 22 16
## 30771 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 18
## 30772 4-Wheel or All-Wheel Drive 6 3.3 Regular 22 16
## 30773 4-Wheel or All-Wheel Drive 4 2.4 Regular 23 18
## 30774 4-Wheel or All-Wheel Drive 6 3.3 Regular 22 16
## 30775 4-Wheel or All-Wheel Drive 6 3.5 Regular 23 17
## 30776 4-Wheel or All-Wheel Drive 6 3.5 Regular 23 17
## 30777 All-Wheel Drive 6 3.5 Regular 23 17
## 30778 All-Wheel Drive 6 3.5 Regular 22 17
## 30782 Front-Wheel Drive 6 3.3 Regular 25 28
## 30783 Front-Wheel Drive 6 3.3 Regular 25 28
## 30784 4-Wheel or All-Wheel Drive 6 3.3 Regular 25 27
## 30785 4-Wheel or All-Wheel Drive 6 3.3 Regular 25 27
## 30786 4-Wheel or All-Wheel Drive 6 3.3 Regular 25 27
## 30787 4-Wheel or All-Wheel Drive 6 3.3 Regular 25 27
## 30788 All-Wheel Drive 6 3.3 Regular 25 27
## 30789 All-Wheel Drive 6 3.5 Regular 28 28
## 30815 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 12
## 30816 4-Wheel or All-Wheel Drive 8 4.7 Regular 15 12
## 30817 4-Wheel or All-Wheel Drive 8 4.7 Regular 15 12
## 30818 4-Wheel or All-Wheel Drive 8 5.7 Regular 18 13
## 30819 4-Wheel or All-Wheel Drive 8 5.7 Regular 18 13
## 30820 4-Wheel Drive 8 5.7 Regular 18 13
## 30821 4-Wheel Drive 8 5.7 Regular 18 13
## 30859 Rear-Wheel Drive 4 1.8 Regular 29 23
## 30860 Rear-Wheel Drive 4 1.8 Regular 30 23
## 30870 Front-Wheel Drive 4 1.8 Regular 31 25
## 30871 4-Wheel or All-Wheel Drive 4 1.8 Regular 29 22
## 30872 Front-Wheel Drive 4 1.8 Regular 33 26
## 30873 Front-Wheel Drive 4 1.8 Premium 29 22
## 30874 Front-Wheel Drive 4 1.8 Regular 31 25
## 30875 4-Wheel or All-Wheel Drive 4 1.8 Regular 29 22
## 30876 Front-Wheel Drive 4 1.8 Regular 33 26
## 30877 Front-Wheel Drive 4 1.8 Premium 29 22
## 30878 Front-Wheel Drive 4 1.8 Regular 31 25
## 30879 Front-Wheel Drive 4 1.8 Regular 33 26
## 30880 Front-Wheel Drive 4 1.8 Regular 31 25
## 30881 Front-Wheel Drive 4 1.8 Regular 33 26
## 30882 4-Wheel or All-Wheel Drive 4 2.4 Regular 26 20
## 30883 Front-Wheel Drive 4 2.4 Regular 28 21
## 30884 Front-Wheel Drive 4 2.4 Regular 29 21
## 30885 Front-Wheel Drive 4 1.8 Regular 31 25
## 30886 Front-Wheel Drive 4 1.8 Regular 32 26
## 30887 Front-Wheel Drive 4 1.8 Regular 31 25
## 30888 Front-Wheel Drive 4 1.8 Regular 32 26
## 30889 All-Wheel Drive 4 2.4 Regular 26 20
## 30890 Front-Wheel Drive 4 2.4 Regular 28 21
## 30891 Front-Wheel Drive 4 2.4 Regular 29 21
## 30892 Front-Wheel Drive 4 1.8 Regular 32 25
## 30893 Front-Wheel Drive 4 1.8 Regular 32 26
## 30894 All-Wheel Drive 4 2.4 Regular 26 20
## 30895 Front-Wheel Drive 4 2.4 Regular 28 21
## 30896 Front-Wheel Drive 4 2.4 Regular 29 21
## 30956 Front-Wheel Drive 4 1.5 Regular 45 48
## 30957 Front-Wheel Drive 4 1.5 Regular 45 48
## 30958 Front-Wheel Drive 4 1.5 Regular 45 48
## 30959 Front-Wheel Drive 4 1.5 Regular 45 48
## 30960 Front-Wheel Drive 4 1.5 Regular 45 48
## 30961 Front-Wheel Drive 4 1.8 Regular 48 51
## 30962 Front-Wheel Drive 4 1.8 Regular 48 51
## 30994 Front-Wheel Drive 4 2.4 Regular 27 21
## 30995 Front-Wheel Drive 4 2.4 Regular 27 21
## 30996 Front-Wheel Drive 4 2.4 Regular 27 21
## 30997 Front-Wheel Drive 6 3.5 Regular 27 19
## 30998 Front-Wheel Drive 4 2.4 Regular 27 21
## 30999 Front-Wheel Drive 6 3.5 Regular 27 19
## 31000 Front-Wheel Drive 4 2.4 Regular 27 21
## 31001 Front-Wheel Drive 6 3.5 Regular 27 19
## 31002 Front-Wheel Drive 6 3.5 Regular 27 19
## 31003 Front-Wheel Drive 4 2.5 Regular 28 22
## 31004 Front-Wheel Drive 4 2.5 Regular 28 22
## 31005 Front-Wheel Drive 6 3.5 Regular 27 19
## 31006 Front-Wheel Drive 4 2.5 Regular 28 22
## 31007 Front-Wheel Drive 6 3.5 Regular 27 19
## 31029 4-Wheel or All-Wheel Drive 4 2.4 Regular 24 20
## 31030 4-Wheel or All-Wheel Drive 4 2.4 Regular 25 19
## 31031 4-Wheel or All-Wheel Drive 4 2.4 Regular 25 20
## 31032 4-Wheel or All-Wheel Drive 6 3.5 Regular 26 19
## 31033 4-Wheel or All-Wheel Drive 4 2.4 Regular 25 20
## 31034 4-Wheel or All-Wheel Drive 6 3.5 Regular 26 19
## 31035 4-Wheel or All-Wheel Drive 4 2.4 Regular 25 20
## 31036 4-Wheel or All-Wheel Drive 6 3.5 Regular 26 19
## 31037 4-Wheel or All-Wheel Drive 6 3.5 Regular 26 19
## 31038 4-Wheel or All-Wheel Drive 4 2.5 Regular 27 21
## 31039 All-Wheel Drive 4 2.5 Regular 27 21
## 31040 All-Wheel Drive 6 3.5 Regular 26 19
## 31041 All-Wheel Drive 4 2.5 Regular 27 21
## 31042 All-Wheel Drive 6 3.5 Regular 26 19
## 31072 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31073 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31074 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31075 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31076 Rear-Wheel Drive 8 5.7 Regular 19 14
## 31077 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31078 Rear-Wheel Drive 8 5.7 Regular 19 14
## 31079 Rear-Wheel Drive 8 4.6 Regular 19 14
## 31080 Rear-Wheel Drive 8 5.7 Regular 19 14
## 31081 Rear-Wheel Drive 8 4.6 Regular 20 14
## 31082 Rear-Wheel Drive 8 5.7 Regular 18 14
## 31091 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31092 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31093 4-Wheel or All-Wheel Drive 8 4.7 Regular 17 13
## 31094 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31095 4-Wheel or All-Wheel Drive 8 5.7 Regular 18 13
## 31096 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31097 4-Wheel or All-Wheel Drive 8 5.7 Regular 18 13
## 31098 4-Wheel or All-Wheel Drive 8 5.7 Gasoline or E85 18 13
## 31099 Part-time 4-Wheel Drive 8 4.6 Regular 18 13
## 31100 Part-time 4-Wheel Drive 8 5.7 Regular 18 13
## 31101 Part-time 4-Wheel Drive 8 4.6 Regular 19 14
## 31102 Part-time 4-Wheel Drive 8 5.7 Regular 18 13
## 31107 Part-time 4-Wheel Drive 8 5.7 Gasoline or E85 18 13
## 31108 Part-time 4-Wheel Drive 8 5.7 Gasoline or E85 17 12
## 31119 Front-Wheel Drive 6 3.3 Regular 24 17
## 31120 Front-Wheel Drive 6 3.3 Regular 24 17
## 31121 Front-Wheel Drive 6 3.5 Regular 24 17
## 31122 Front-Wheel Drive 6 3.5 Regular 23 17
## 31123 Front-Wheel Drive 6 3.5 Regular 23 17
## 31124 Front-Wheel Drive 6 3.5 Regular 23 17
## 31125 Front-Wheel Drive 6 3.5 Regular 24 18
## 31126 Front-Wheel Drive 4 2.7 Regular 24 19
## 31133 4-Wheel or All-Wheel Drive 6 3.3 Regular 22 16
## 31134 4-Wheel or All-Wheel Drive 6 3.3 Regular 21 15
## 31135 4-Wheel or All-Wheel Drive 6 3.5 Regular 21 16
## 31136 4-Wheel or All-Wheel Drive 6 3.5 Regular 21 16
## 31137 4-Wheel or All-Wheel Drive 6 3.5 Regular 21 16
## 31138 All-Wheel Drive 6 3.5 Regular 21 16
## 31139 All-Wheel Drive 6 3.5 Regular 22 16
## 31273 Rear-Wheel Drive 4 2.7 Regular 24 18
## 31274 Rear-Wheel Drive 4 2.7 Regular 25 18
## 31275 Rear-Wheel Drive 6 4.0 Regular 21 16
## 31276 Rear-Wheel Drive 6 4.0 Regular 19 14
## 31277 Rear-Wheel Drive 4 2.7 Regular 24 18
## 31278 Rear-Wheel Drive 4 2.7 Regular 25 18
## 31279 Rear-Wheel Drive 6 4.0 Regular 21 16
## 31280 Rear-Wheel Drive 6 4.0 Regular 19 14
## 31281 Rear-Wheel Drive 4 2.7 Regular 25 19
## 31282 Rear-Wheel Drive 4 2.7 Regular 26 20
## 31283 Rear-Wheel Drive 6 4.0 Regular 21 17
## 31284 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31285 Rear-Wheel Drive 6 4.0 Regular 20 16
## 31286 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31287 Rear-Wheel Drive 4 2.7 Regular 25 19
## 31288 Rear-Wheel Drive 4 2.7 Regular 25 20
## 31289 Rear-Wheel Drive 4 2.7 Regular 26 20
## 31290 Rear-Wheel Drive 4 2.7 Regular 25 19
## 31291 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31292 Rear-Wheel Drive 6 4.0 Regular 21 17
## 31293 Rear-Wheel Drive 4 2.7 Regular 25 19
## 31294 Rear-Wheel Drive 4 2.7 Regular 26 20
## 31295 Rear-Wheel Drive 6 4.0 Regular 21 17
## 31296 Rear-Wheel Drive 6 4.0 Regular 18 15
## 31297 Rear-Wheel Drive 4 2.7 Regular 25 19
## 31298 Rear-Wheel Drive 4 2.7 Regular 25 21
## 31299 Rear-Wheel Drive 6 4.0 Regular 21 17
## 31300 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31353 4-Wheel or All-Wheel Drive 4 2.7 Regular 21 17
## 31354 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 31355 4-Wheel or All-Wheel Drive 6 4.0 Regular 18 14
## 31356 4-Wheel or All-Wheel Drive 4 2.7 Regular 21 17
## 31357 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 31358 4-Wheel or All-Wheel Drive 6 4.0 Regular 18 14
## 31359 4-Wheel or All-Wheel Drive 4 2.7 Regular 22 17
## 31360 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 31361 4-Wheel or All-Wheel Drive 6 4.0 Regular 18 15
## 31362 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 31363 4-Wheel or All-Wheel Drive 6 4.0 Regular 18 15
## 31364 4-Wheel or All-Wheel Drive 4 2.7 Regular 22 17
## 31365 4-Wheel or All-Wheel Drive 4 2.7 Regular 22 17
## 31366 4-Wheel or All-Wheel Drive 6 4.0 Regular 19 14
## 31367 4-Wheel or All-Wheel Drive 6 4.0 Regular 20 16
## 31368 Part-time 4-Wheel Drive 4 2.7 Regular 22 17
## 31369 Part-time 4-Wheel Drive 6 4.0 Regular 20 16
## 31370 Part-time 4-Wheel Drive 6 4.0 Regular 18 14
## 31371 Part-time 4-Wheel Drive 4 2.7 Regular 21 18
## 31372 Part-time 4-Wheel Drive 4 2.7 Regular 20 18
## 31373 Part-time 4-Wheel Drive 6 4.0 Regular 20 16
## 31374 Part-time 4-Wheel Drive 6 4.0 Regular 18 14
## 31608 Rear-Wheel Drive 6 4.0 Regular 20 16
## 31609 Rear-Wheel Drive 6 4.0 Regular 19 14
## 31610 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31611 Rear-Wheel Drive 6 4.0 Regular 21 16
## 31612 Rear-Wheel Drive 6 4.0 Regular 19 14
## 31613 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31614 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31615 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31616 Rear-Wheel Drive 8 5.7 Regular 18 14
## 31617 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31618 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31619 Rear-Wheel Drive 8 5.7 Regular 18 14
## 31620 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31621 Rear-Wheel Drive 8 4.7 Regular 17 14
## 31622 Rear-Wheel Drive 8 5.7 Regular 18 14
## 31623 Rear-Wheel Drive 6 4.0 Regular 19 15
## 31624 Rear-Wheel Drive 8 4.6 Regular 20 15
## 31625 Rear-Wheel Drive 8 5.7 Regular 18 14
## 31626 Rear-Wheel Drive 8 4.6 Regular 20 15
## 31627 Rear-Wheel Drive 8 5.7 Regular 18 14
## 31628 Rear-Wheel Drive 6 4.0 Regular 20 16
## 31653 4-Wheel or All-Wheel Drive 8 4.7 Regular 17 13
## 31654 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31655 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31656 4-Wheel or All-Wheel Drive 8 5.7 Regular 17 13
## 31657 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31658 4-Wheel or All-Wheel Drive 8 5.7 Regular 17 13
## 31659 4-Wheel or All-Wheel Drive 8 4.7 Regular 16 13
## 31660 4-Wheel or All-Wheel Drive 8 5.7 Regular 17 13
## 31661 4-Wheel or All-Wheel Drive 8 5.7 Gasoline or E85 17 13
## 31662 Part-time 4-Wheel Drive 8 4.6 Regular 19 14
## 31663 Part-time 4-Wheel Drive 8 5.7 Regular 17 13
## 31664 Part-time 4-Wheel Drive 8 4.6 Regular 19 14
## 31665 Part-time 4-Wheel Drive 8 5.7 Regular 17 13
## 31672 Part-time 4-Wheel Drive 8 5.7 Gasoline or E85 17 13
## 31673 Part-time 4-Wheel Drive 8 5.7 Gasoline or E85 17 13
## 31704 Front-Wheel Drive 6 3.5 Regular 26 19
## 31705 Front-Wheel Drive 4 2.7 Regular 29 21
## 31706 Front-Wheel Drive 4 2.7 Regular 29 21
## 31707 Front-Wheel Drive 6 3.5 Regular 26 19
## 31708 Front-Wheel Drive 4 2.7 Regular 27 21
## 31709 Front-Wheel Drive 6 3.5 Regular 26 19
## 31718 4-Wheel or All-Wheel Drive 6 3.5 Regular 25 18
## 31719 All-Wheel Drive 4 2.7 Regular 28 20
## 31720 All-Wheel Drive 4 2.7 Regular 28 20
## 31721 All-Wheel Drive 6 3.5 Regular 25 18
## 31722 All-Wheel Drive 4 2.7 Regular 25 20
## 31723 All-Wheel Drive 6 3.5 Regular 25 18
## 31728 Front-Wheel Drive 4 1.5 Regular 35 29
## 31729 Front-Wheel Drive 4 1.5 Regular 36 29
## 31730 Front-Wheel Drive 4 1.5 Regular 35 29
## 31731 Front-Wheel Drive 4 1.5 Regular 36 29
## 31732 Front-Wheel Drive 4 1.5 Regular 36 29
## 31733 Front-Wheel Drive 4 1.5 Regular 35 29
## 31734 Front-Wheel Drive 4 1.5 Regular 35 29
## 31735 Front-Wheel Drive 4 1.5 Regular 36 29
## 31736 Front-Wheel Drive 4 1.5 Regular 35 29
## 31737 Front-Wheel Drive 4 1.5 Regular 36 29Continuous variables (if any)
There is no continous variables in this test. Factors are chosen as ‘make’ and ‘year’, though year seems like continous variable, in this case year is a discrete and independent factor.
Response variables
Response variable in this test is ‘cty’, referring to city fuel economy in mpg (miles per gallon)
The Data: How is it organized and what does it look like?
Detailed information is provided in the ‘fueleconomy’ dataset, including almost everything to evaluate an auto. From a survey online, many types made by Honda and Toyota are especially fuel-saving, with pretty acceptable price especially for those who want to buy a used car just for daily use. Therefore we set ‘Honda’ and ‘Toyota’ as two levels of factor ‘make’; also a used car from 2005 to 2011 could be a ideal deal for most people, so we set ‘2005’ to ‘2011’ as levels of factor ‘year’. Since this study is primarily for consumers purchasing cars for daily use, we set ‘cty’ (city fuel ecomony) as response variable
Randomization
Fuel economy data are the result of vehicle testing done at the Environmental Protection Agency’s National Vehicle and Fuel Emissions Laboratory in Ann Arbor, Michigan, and by vehicle manufacturers with oversight by EPA. Therefore it is reasonalbe to assume these data are randomly collected.
2. (Experimental) Design
How will the experiment be organized and conducted to test the hypothesis?
Collect data from ‘fueleconomy’ dataset, then filter data and collect samples with restrictions on ‘make’ and ‘year’, then use ANOVA to test the effect of both factors at the same time.
What is the rationale for this design?
There are two factors: ‘make’ and ‘year’, we set two levels in ‘make’ and seven levels in ‘year’. This case is a two-level-multiple-factor model, and effect of both factors can be analyzed through ANOVA. Null hypothesis can be H0: City fuel economy is independent to both make and year
Randomize: What is the Randomization Scheme?
Randomization depends on the way data collected, which is assumed as complete randomization.
Replicate: Are there replicates and/or repeated measures?
There is no replicates or repeated measures in this test.
Block: Did you use blocking in the design?
Though other parameters related to vehicle manufactures, such as model, cylinder and transmission could lead to difference in city fuel economy, since this study is to test an overall level of certain manufactures, there is no need to block parameters as mentioned above.
3. (Statistical) Analysis
(Exploratory Data Analysis) Graphics and descriptive summary
library("fueleconomy")
# Logical vector identifying all Honda and Toyota made from 2005 to 2011
M<-x$make=='Honda'|x$make=='Toyota'
N<-x[M,]
P<-N$year=='2005'|N$year=='2006'|N$year=='2007'|N$year=='2008'|N$year=='2009'|N$year=='2010'|N$year=='2011'
# All samples record in the dataframe
sample<-N[P,]
# Quick view of samples collected
head(sample)## id make model year class trans
## 15928 20867 Honda Accord 2005 Midsize Cars Automatic 5-spd
## 15929 20868 Honda Accord 2005 Midsize Cars Manual 5-spd
## 15930 20869 Honda Accord 2005 Midsize Cars Automatic 5-spd
## 15931 20870 Honda Accord 2005 Midsize Cars Manual 6-spd
## 15932 21960 Honda Accord 2006 Midsize Cars Automatic 5-spd
## 15933 21961 Honda Accord 2006 Midsize Cars Manual 5-spd
## drive cyl displ fuel hwy cty
## 15928 Front-Wheel Drive 4 2.4 Regular 31 21
## 15929 Front-Wheel Drive 4 2.4 Regular 31 23
## 15930 Front-Wheel Drive 6 3.0 Regular 28 19
## 15931 Front-Wheel Drive 6 3.0 Regular 27 18
## 15932 Front-Wheel Drive 4 2.4 Regular 31 21
## 15933 Front-Wheel Drive 4 2.4 Regular 31 23boxplot(cty~make, data=sample)
boxplot(cty~year, data=sample)
Boxplots revel that though means of Honda and Toyota are basically same, it is obvious that there is difference between Honda and Toyota interms of city fuel economy. When it comes to year, difference is not that obvious
Testing
ANOVA test is conducted as below:
#variance of make
model=aov(cty ~ make, data=sample)
anova(model)## Analysis of Variance Table
##
## Response: cty
## Df Sum Sq Mean Sq F value Pr(>F)
## make 1 1336 1336 32 2.4e-08 ***
## Residuals 565 23577 42
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1P-value is much smaller than 0.05, which means probably variance of cty is dependent on make.
#variance of year
sample$year=as.factor(sample$year)
model=aov(cty ~ year, data=sample)
anova(model)## Analysis of Variance Table
##
## Response: cty
## Df Sum Sq Mean Sq F value Pr(>F)
## year 6 234 39.0 0.88 0.51
## Residuals 560 24680 44.1P-value is larger than 0.05, which means basically variance of cty is independent to year in this case
#variance of interaction between make and year
model=aov(cty~make*year,data=sample)
anova(model)## Analysis of Variance Table
##
## Response: cty
## Df Sum Sq Mean Sq F value Pr(>F)
## make 1 1336 1336 31.95 2.5e-08 ***
## year 6 216 36 0.86 0.52
## make:year 6 234 39 0.93 0.47
## Residuals 553 23127 42
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1When considering interaction between make and year, both of them have p-value smaller than 0.05, that means interaction of them would possibly explain the variance of cty. From ANOVA tests above, null hypothesis can be rejected, and alternative hypothesis can be accepted: cty is dependent on either make or year. In fact, it is dependent on interaction of both, according to the lase anova test.
Estimation (of Parameters)
Blank
Diagnostics/Model Adequacy Checking
qqnorm(residuals(model))
qqline(residuals(model))
qqnorm plot and qqline of residuals exhibit linear pattern of residuals, which means previous model used is valid.
interaction.plot(sample$make,sample$year,sample$cty)
Interaction polt does not appear as parallel lines, however lines do not corss either, which means the make*year model is probably adequate to explain variance of cty.
plot(fitted(model),residuals(model))
Plot of fitted model and residuals model shows residuals do not evenly distribute on each side of 0, indicating the model is not adequate enough to explian the variance of cty, and further assumptions about model should be made.
4. References to the literature
http://www.carsdirect.com/car-buying/what-makes-a-car-fuel-efficient http://www.samarins.com/buying/pg2.html