Those GXP rims are probably going to fool a few folks. Were they on the car when you bought it (dealer install or by previous owner)? Just curious. Enjoy a great car, even if it doesn't have the rest of the fun GXP parts ;-) !
I bought the car from the dealer with those rims on it. The story I was told by the salesman there was that they had the opportunity to buy a few sets of GXP rims from GM and after doing so they installed on a few G8 GTs they had on the lot.
Where did you get your gxp rims. I am getting a 17" winter rims that will fit the Pontiac G8 auto body parts bolt pattern. Its rare apparently, There are lots of tires out there but rims are the mostly hard to find.