I have a '07 GT that I got in early June. I have put about 10,500 miles on it so far, and other than my front tires wearing out faster than I can rotate them, I have had absolutely NO problems. Hell, even the stock summer tires have been great in the winter here in Minnesota. I don't baby the car, but I don't beat it either, so I think my experience is fairly typical. I have an Injen cai, and no other performance mods. No cels, no smoke, no oil leaks, no rattles (even at -15 degrees). The car has been a total joy. (headbang)