yellow, I think you were just missing Uxi's point about general class categories of cars.. like, seating on a plane (coach/business/1st class). When it comes to buying a car, performance is not the only factor for picking one you like. If someone's got the big bucks, they're gonna look at cars with the bigger name, and the fancier image. Cars, to (what I would say) most people serve a dual purpous. They are the workhorse, and the stagecoach. You want it to be reliable for day to day grunge, but if possible, impress your friends and significant others while you're goin out on the town.. or whatever
then you have your hardcore drivers who just want performance, even if it looks like a flintstones car =P