New York City looked at actual fuel economy of hybrids and non-hybrids and compared them to EPA ratings. It found that hybrids performed better than expected in fuel economy in comparison to the non-hybrids.
U.S. DOT and EPA Lower Gas Mileage Targets
NHTSA and the EPA will increase the stringency of corporate average fuel economy (CAFE) and CO2 emissions standards by 1.5% each year through model-year 2026, as compared with previous standards that would have required about 5% annual increases.
