I've said this so many times, but why the obsession with "stock appearing" race cars, especially in classes that are very, very fast? When I see a modern FC, it looks like a land based missile, and it is. When I see a PS car, I see an engineering marvel that looks badass. We have classes for cars that look real close to production cars, and are scary fast, such as the FSS cars. When Pro Stock started over FIFTY years ago, they really were street cars with slicks and hood scoops (I'm exaggerating but you get it), what we have now is a result of progress. And as far as what's under the hood, given the parameters that Pro Stock engines must follow, things evolve to an optimum design. So, I don't get hung up on the all GM thing, I do however think having different body types is good for the class. Just my pre-coffee 2 cents, LOL.