I just came from the dealer and they noticed that my fender on the driver's side was cracked. In looking at it I don't think a lift did it. I think it is a stress crack caused by either improper assembly, defective panel or the car is flexing. I've had the car 2 weeks and have 1200 miles on it and the only time it was on a lift was prior to delivery and they were very careful. My background is automotive quality so I feel comfortable in my analysis. It was found this morning at a sister dealership and I have sent a photo to my dealer and asked that they contact GM for indepth research on this before it gets out of hand. Any of you looked under your car and found a crack under the front fender behind the wheel?