I drive an Aveo, which is about as small and cheap as I want to get into. And I wouldn't have it if it weren't for the high gas prices of a couple of years ago that coincided with losing my long term employer. Now I have to do everything on the cheap. I put lots of freeway miles in driving a very small car.
Just like riding a motorcycle, you have to drive paranoid because a hummer would eat my car for lunch.