Plug-in hybrid vehicles emit up to five times more CO2 under real driving conditions than calculated by the European Union, revealing a significant discrepancy between real values and type-approval test results. This conclusion comes from a study conducted by the International Council on Clean Transportation (ICCT), an environmental non-governmental organization.
The study analyzed plug-in hybrid electric vehicles registered between 2021 and 2023, identifying a growing and substantial difference between CO2 emissions measured during official tests and emissions effectively produced in daily driving. This gap represents a considerable problem for the EU's environmental objectives, since the official data used to calculate average fleet emissions does not reflect reality.
