7:Honda CR-Z:

It all comes down to the Environmental Protection Agency or in other words the EPA rating which approves by law the statistics of a car. Recent news even goes so far to make sure that the ratings are stuck on the front window. For this beauty the EPA rating is a 55 mpg city/ 49 mpg highway along with 1.5 liter 4-cylinders that goes with an electric motor, this car will suit your needs when it comes to fuel-efficiency and has feature like Bluetooth, cruise control and automatic climate control.