Yes I know the gas there is 4 times cheaper than in Europe, and cheaper than water
But, do you really need those big cars that are like standard there with big motors?
In Europe, average is 1.4l motors with 70 to 100 hp, and this is quite good for almost everyone that uses his car for anything but racing. These cars are also rather economic, styled good, small and goodlooking.
Why do american mainstream cars have to be with 2l engines minimum, weight 2 tons...and look rather ugly.
(We're talking about mainstream cars in the $15k area)
100-120 mph is very good top speed IMO, for a car. If you like to go faster, just get a bike and you'll reach 150-180mph and 10 times the adrenaline.