I bought my Crossfire convertible about 2 years ago. Love the car, but have had problems with the rear tires. After the first year, the passenger rear blow out, and the driver rear also needed replacement. Replaced them both, chalked it up to just being old tires. This past weekend on a trip, the passenger rear tire blew again after less then 10,000 miles. This time we realized that the rear wheels were out of alignment. (Both rears bad again). We are getting the wheels aligned plus 2 new rear tires. Is wheel alignment a known problem with Crossfires?