I've always called the new GTO's "Cavalier SS's" to the more-often-than-not snotty GTO crowd (don't take offense Gaijin!), but I do like them.
Well, the new Challenger still looks blocky and chunky to me, however I was never a fan of the original E-body cars either, so whatever.
As for the Mustang, it's porky looking but I've grown to like it...