I have had my convertible for 3 months. Last week, a strange noise happened upon putting the top down. The dealership said it was the boot cover, and it would need to be replaced. The part is no longer made. I have called almost everyone on the internet I could find for the part. I located only two, and they are used. Of course, the cost is ridiculous. I am strongly considering opting for another convertible if GM is not going to continue to make parts to fix it. Anybody else with this problem?