Toyota Yaris: You have to step up a trim level to get an audio system, but the base Yaris three-door hatchback does have air conditioning and a tilt steering column. Its power comes from a 106-horsepower, 1.5-liter four-cylinder engine. With an EPA rating of 29 mpg city and 36 mpg highway, its outstanding fuel economy earned it a spot on our list of top 10 fuel misers.