I run about 12 to 14 track days a year plus lots of canyon drives and generally get 7000 miles out of a set of tires. The AD08's have 6000 miles on them so far and may have two more track days in them before I replace them. The AD08's are very aggressive on the track and have dropped my lap times about 2 seconds from my previous Kuhmo Ectsa LE's. In the dry these tires stick very well with very little slip. They run hotter for longer than the Kuhmo's without getting loose or slippery. On the street they are a little noisy but the aggressive handling and ability to do what you ask of them out weighs the noise at freeway speeds. The tread has a great look to them on the car as well, a very attractive tire. If you autocross or run track days this is the tire hands down. I plan on buying again.