The FuelEconomy.gov web site now offers mileage estimates for 2010 cars. You can find estimates for 2010 here. Other years accessible here.
FuelEconomy.gov also provides a mobile version of their site at: fueleconomy.gov/m. The mobile site provides:
+ Fuel economy ratings for all cars and light trucks sold in the U.S. back to model year 1985
+ Annual fuel cost estimates
+ Annual petroleum use (barrels of domestic and imported petroleum)
+ Carbon footprint (tons of carbon dioxide emitted annually)
Source: U.S. Department of Energy / EPA
