Here's a car about the same size that is claimed to get 100 MPG.

http://www.likecool.com/The_Peel_P50_Car--Coupe--Car.html

The great thing is that, instead of paying for parking, you can just grab the handle in back and use it for wheeled luggage. They ran a feature on it on Top Gear in which they drove it around (as up and down the halls) the BBC offices.

Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python