I bought my RT/10 in the summer of 2010. The previous owner put new PS2s on the Viper sometime around Fall 2009 I believe. I've only put a few thousand pampered miles on it since I've owned it; with the occasional spirited sprints mixed in. The Viper sat through three winters in a non-heated garage. Is it time for new tires already? Again, I pamper the car and only get on it when the wheels are 100% pointed straight.