MPG by category

MPG by broad category

CO2 emissions

Fuel economy by manufacturer

Production shares by vehicle type

Manufacturers

Notes

NOTES

The carbon dioxide (CO2) emissions and fuel economy data fall into one of two categories. The first is compliance data, which is measured using laboratory tests required by law for CAFE and adopted by EPA for GHG compliance. The second is estimated real-world data, which are measured using additional laboratory tests to capture a wider range of operating conditions (including hot and cold weather, higher speeds, and faster accelerations) encountered by an average driver.

All data in this report for model years 1975 through 2021 are final and based on official data submitted to EPA and NHTSA as part of the regulatory process.

Data are based on production volumes delivered for sale in the U.S. by model year, and may vary from publicized data based on calendar year sales.

Most of the data are reported as fleetwide averages, reflecting arithmetic production-weighted averages of individual CO2 emissions values and harmonic production-weighted averages of individual fuel economy values.

https://www.epa.gov/automotive-trends/introduction-automotive-trends-report

Vehicles are disaggregated into five vehicle types: sedan/wagon, car SUV, truck SUV, pickup truck, and minivan/van. The distinction between car and truck SUVs is based on regulatory definitions where SUVs that are 4WD or above a weight threshold (6,000 pounds gross vehicle weight) are generally regulated as trucks and classified at truck SUVs for this report. The remaining 2WD SUVs are subject to car standards and classified as car SUVs.

https://www.epa.gov/system/files/documents/2022-12/420s22001.pdf