Here are the Top 30 Most Fuel-Efficient cars for 2013*. The MPG ratings shown below for each car are for a specific engine/transmission combination (ex: Volkswagen Jetta TDI). Moreover, not all trim levels or styles of a particular vehicle will get the same MPG (miles per gallon) due to the different engine combinations offered.
It should be noted that the MPG you get when you drive a vehicle will vary based on a number of factors, including temperature, driving terrain, tire pressure and cargo load. The biggest factor that dictates fuel economy is driver behavior. Rapid acceleration and braking will diminish the efficiency of any vehicle, so it’s important to aim for smooth acceleration and controlled braking.
*Ratings as of 9/16/13