EU Data Reveals Plug-in Hybrids Pollute Far More Than Official Tests Indicate

New figures released by the European Union last week show that plug-in hybrid vehicles (PHEVs) produce carbon dioxide emissions that are, on average, six times higher than what official laboratory tests report. The 2024 dataset highlights a significant gap between controlled test results and what these cars actually emit on the road.

This discrepancy has caught the attention of policymakers, especially as the car industry pushes to weaken regulations designed to measure PHEV pollution more accurately. The lobbying effort seeks to discard rules that would better reflect real-world driving conditions, where emissions are consistently higher.

The findings underscore a growing concern: while PHEVs are often marketed as a low-emission bridge to fully electric vehicles, their actual environmental impact may be far greater than advertised. As the EU considers its next steps, the data adds pressure to ensure testing methods mirror reality.