Well, Fiat and Renault went to about 45-50 mpg and capped out. Volkswagen , on the other hand, managed to create their amazing Lupo series of car. This car capped out at 99 mpg, using a 3 liter 4 cylinder engine. Thats the power of German engineering , we guess.
At that time, and until it's last production in 2005, Americans claimed they did not need "small fuel efficient cars" , companies like general motors stated "it would not sell" (funny how they failed because of lack of fuel efficiency in their vehicles?)
Well anyways, the car handles well and its a two-door sedan, really. The car runs ok, and doesn't look too bad either. Some 8000 were produced and sold in Europe. Though thanks to American ignorance, it was never imported to the states.
Volkswagen Lupo