PHEVs pollute more than billed, but EPA just gave them a pass

2024 Porsche Cayenne S E-Hybrid A new European study finds that plug-in hybrids pollute more than advertised, while in the U.S. the EPA appears ready to give them more emissions leeway. The European Commission study showed that new plug-in hybrids registered in 2021 averaged emissions of 139.5 grams of CO2 per kilometer, which was 3.5 times higher than what Europe's WLTP...