Matt,
Ouch! One point I tried to make was that a car that can hang with the likes of many supercars should have a better interior in fit and finish. The new C6 is quite attractive, undeniably powerful; and IMHO, a large step up in the interior, yet the interior is still short of the supercars it can hang with.
The second point was that even cheaper European cars, (Fiat, skoda, etc), have better interior feel than similar price/performance/function U.S. models.
The new Mustang, if you have been in one, doesn't have a nice interior. It's pure crap. Huge cheap slabs of creaky plastic all over. That seems to almost be a standard of American cars. It can't cost that much more to improve the interior feel of an American car.
Since you asked

I am curious, why does the avarage American car still use power robbing pushrods, larger displacement to get the same power reads as a smaller (not always, but usually more efficient)jap/german engine?
Yours, Matt; aka VWGTIFAN