I bought these to replace my continentals which were wearing great, but the sidewalls rolled, steering response was not good. I actually took my 750Li to a BMW driving school. These tires ROCK! my 5000 lb beast surprised everyone! I was passing all but two of the other cars. It was a shocking performance(mostly to me) These tires held in there through 60 mph 90 degree turns! They were screaming, but held well enough to let me pass Porsches, 3 series, and one of the corvettes that showed up. The fact that this car was even close to the other cars was amazing. The tires held up to dozens of 130mph - 40mph then being thrown into a hard turn. Even the treads held up well, i did not have to replace the tires after two days of racing. On the street, they are very civilized. Almost as quite as the continentals. the ride was tighter than the continentals, but steering response more than makes up for it. I have had these tires on other cars, They are not great in snow. I am very happy with their performance in rain. I am taking them to another track event which will probably finish them off, so i can't talk about wear, that would not be fair.