Plug-in hybrid vehicles (PHEVs) emit nearly five times more carbon dioxide in real-world driving than official tests show, according to the Guardian, citing a study by Transport & Environment (T&E).
The report draws on data from 800,000 vehicles across Europe between 2021 and 2023. It finds that PHEVs produce only 19% less CO2 than petrol or diesel cars, even though they have been widely promoted as a lower-emission alternative to regular vehicles. For example, under lab conditions, testers assumed the cars emitted 75% less.
Researchers identify the main reason for the difference is that drivers use electric mode...