8. 2014 Mitsubishi Mirage
Miles per gallon: 37 city, 44 highway, 40.5 combined
No hybrid engine, no plug: Just a light little econobox that makes the most of its fuel.
We're going to stress that this is not a big car by any measure. About 12 feet long and little more than 5 feet wide, the Mirage doesn't even provide the illusion of space. But its 17 cubic feet of trunk space is larger than the Jetta's and increases to 47 cubic feet with the hatchback's seats down. Throw in a pushbutton starter, hands-free phone, available navigation system and automatic climate control and you're getting a whole lot in this little package.