I don't know how old the tires were on my car when I purchased it, but I replaced the rear tires with Contis I think, and I got about 11K out of them - I don't consider myself as a very agressive driver - I play every now and again, but who doesn't. When they needed replacing again, I went to a larger aspect ratio tire (kept the width the same), hoping that a taller sidewall would allow the tire to flex more and not spin. I chose a tad harder compound - but they don't translate exactly from one manufacturer to another.