Also the more apt car comparison is Porsche-"American Muscle Car of Choice". They might look the same on paper, but they sure as hell ain't when you drive them (unless its a straight road and you don't really care about the interior I guess)
Maybe, I just see them as being cobbled together from parts from many different manufactures. And the people who own them are constantly working on them, fixing or tweaking them. Also, one small bump from behind and they crash/blow up...