3. Honda Civic
The Honda Civic is one of the most popular vehicles in the United States, and there are multiple reasons for it. First of all, it is handsome, but the economy-leading 1.5-liter turbo-four engine is attracting customers just as well as the design. The base LX and EX models are equipped with a 2.0-liter engine that is rated at 31/40 MPG, but if you want to increase those numbers, you will have to pay at least $2,760 more. With the better fuel efficiency (32/42 MPG) you will also get extra horsepower and some cool features, so adding a few thousand to the base price is valuable in the long run.