[RedDevil]

True.
About small cars...
Actually the auto industry has put a lot of energy in producing light, small and very cheap cars. 30% of all new car sales in Holland is in the smallest category: Peugeot 107/Toyota Aygo/Citroen C1, VW Up!/etc, Hyundai I10, Chevy Spark.
Apparently we want cars like that, and the USA does not?

But the small cars do rather poorly on economy.
They are used to bring the kids to school and for shopping in town. Short trips, lots of stop and go traffic.
I know I can take It to work and get at least twice as many miles per tank, about the same as the Red Devil does. But the latter is much more convenient on the highway while It is easier to park in the undersized parking slots over here, so my wife prefers that.

Once again the way you drive it has an enormous impact on economy. I could beat It's FE in almost anything.
Then again, if you have to do the school run, it is better to do it in a light car. But the savings are not that spectacular.