tire wear is all in how you drive. the pirellis are a 220 tread wear. that is really soft. while my moms blazer has a set of michelins that are just about 600 tread wear. she has almost 200k on it and is ONLY on her third set of tires, then again she is a really cautious driver. her first (dealer) set was replaced at 66k, the dealer and tire guy were shocked it had that many miles on the first set.
i hope to get at least 30k out of my camaros tires. i doubt it because im having a hard time keeping off the throttle.