Fuel economy can make or break your car purchase. Before you buy, check out the vehicles on this list with the worst gas mileage in their class based on extensive, rigorous fuel economy tests ...

However, if you are someone wanting to get something that is actually efficient, here are seven luxury cars with the worst mpg that you should stay away from at all cost. Read more: 10 Of The Most ...

We've ranked the cars with the best gas mileage based on official fuel efficiency data and ratings from the EPA. They are ranked in order from best to worst by combined mpg figures, though some ...