Here is my dilemma. I have a 95 M3 with 34k miles. The extended warranty expires next Dec. I enjoy the performance of the M3, but when I look at the repair bills that I would have to pay without warranty I get nervous. I figure to sell the M3, and get an IS it would cost me prox 12k. Should I take my chances on repairs not haunting me, or go for the IS with a fresh warranty ?