WASHINGTON - The U.S. Environmental Protection Agency (EPA) and the Department of Energy (DOE) have unveiled the 2010 Fuel Economy Guide, which provides important information about estimated fuel costs and mileage standards for 2010 model-year vehicles.

2010 fuel-efficient models come in all types and sizes, including a wide range of hybrid models, from compact cars to sport-utility vehicles. For 2010, the Toyota Prius tops the list as the most fuel-efficient model at 51 mpg city/48 highway. Click here to view the Top 10 fuel economy leaders.

Each vehicle listing in the Fuel Economy Guide provides an estimated annual fuel cost. The estimate is calculated based on the vehicle's miles per gallon (mpg) rating and national estimates for annual mileage and fuel prices. The online version of the guide allows users to input their local gasoline prices and typical driving habits to receive a personalized fuel cost estimate.

Joint DOE/EPA Fuel Economy website for detailed information on fuel economy, including a complete version of the Fuel Economy Guide is available at www.fueleconomy.gov. The Fuel Economy Guide also continues to be available to mobile users (fueleconomy.gov/m), and is readily accessible from a mobile device, smart phone, or personal digital assistant (or PDA).