Real-world values are two to four times higher for private cars and three to four times higher for company cars. The deviation from New European Drive Cycle (NEDC) type-approval values spans much larger ranges than for conventional vehicles. PHEV fuel consumption and tail-pipe CO 2 emissions in real-world driving, on average, are approximately two to four times higher than type-approval values. The analysis arrives at the following main findings: This report provides an analysis of real-world usage and fuel consumption of approximately 100,000 PHEVs in China, Europe, and North America. However, there is limited evidence on how much driving PHEVs actually do on electricity and how much conventional fuel they use in real-world operation.
Plug-in hybrid electric vehicles (PHEVs), which combine an electric and a conventional combustion engine drive train, offer the potential to reduce global greenhouse gas (GHG) emissions and local air pollution if they drive mainly on electricity.