4. 2012 Nissan(NSANY) Juke CVT SL
Combined miles per gallon: 29.5
Sure, the Juke is small and funny looking, but with this mileage it's what's inside that counts. That includes a surprising 36 cubic feet of cargo space, a navigation system, rearview camera, leather interior and an upgraded speaker system. Not bad perks for a car sporting all of four cylinders in its engine.