![Mathilde Carlier](https://cdn.statcdn.com/static/../CMS/contactperson/ERI2785_1713774293.png)
Light vehicle CO2 emission levels in the U.S. by OEM 2021
Model year (MY) 2021 General Motors cars and light trucks on U.S. roads had a preliminary CO2 emission level of some 415 grams per mile, the highest level of all manufacturers. Adjusted CO2 values reflect real world estimates.