This year, for the first time, EPA and DOE have added a second top ten list of most efficient vehicles—separating advanced technology vehicles from conventional gasoline and diesel vehicles.

The 2013 guide provides an estimated annual fuel cost for each vehicle. 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 (fueleconomy.gov) allows consumers to enter their local gasoline prices and typical driving habits to receive a personalized fuel cost estimate. The 2013 guide also includes a greenhouse gas rating for each model.

All 2013 model year vehicles will display a new fuel economy and environment label to provide consumers with more comprehensive fuel efficiency information, including five-year fuel costs or savings compared to the average new vehicle, as well as new ratings for greenhouse gas and smog. These labels are required for model year 2013, but some automakers voluntarily adopted the new label design on some 2012 models.