Well, I only have 7,000 miles on my 05, and the tires have become badly out of balance already. I'm used to tires becoming unbalanced on sports cars, but it usually takes 15,000 or more for it to happen. I'm wondering if the 6 months it took the car to get here after being made damaged the tires. Anyway, I've had them balanced twice, and rotated twice, and the steering wheel is still shaking badly above 50mph. I was wondering if anyone has replaced tires on an 04 or 05 yet, and if so, what did you buy, and do you like them? Thanks.