a Bridgestone SO3 tire. How many miles are these things good for? I drive fairly aggressively but don't spin the wheels much. I don't visit the track at all...yet. Also, does snow=crash with these tires. Seattle rains alot=SO3 good, but only has snow about 7 days out of the year. I grew up in Michigan (=snow) driving a '95 Mustang GT and never put it into the trees so I feel pretty confident about adverse weather (unlike other Seattle drivers out here...not all, so don't flame).