Cant' wait to get to the track tomorrow night! So far these tires rock. Went with 315/35/20. I know performance on the street doesn't very often translate to the track but finally the car dead hooks in 2nd which is a good thing. Also, very impressed with their street manners. Haven't attempted any twisties or anything like that, but they feel great and exactly like my Invos do, no way to tell there are DRs out back....