I'm glad that people are complaining about what they see. If anyone from GM is reading these boards, then it's the only chance to voice your opinion.
I don't get why many of you want to say "whoo-ray" for GM. It's like some baseball or football team you're rooting for. If GM is making bad decisions by making changes, then express them.

Good for all of you who have.
What's worse is those of you who assume that GM is making changes for good reasons. NOPE. On what basis do you make such an assumption?...None....just 'cause you like GM, or something silly like that.
Someone on this thread said it right...it's about money! It would cost them too much to put that gas cap on top.
The change to the rear bumper and the backup lights....that's just poor choices by GM designers. And no, don't post giving me some made up reasons as to why they had to do that, like to meet some code, etc. We all know they can design just about anything they want.
The change to the rear bumper and the placement of the backup lights was a design change. A very poor design change at that.
I say to GM...make it like the concept! Sure, change the things you have to, but not those that you don't.