I used these tires for 2.5 autocross seasons and they exceeded my expectations. I initially had them installed on a 2005 Subaru WRX with no suspension modifications, and the outside shoulders paid the price. Once I started running enough negative camber and added some stiffer sway bars, the tires performed much better and held up nicely. Very predictable at the limit and excellent feedback. They can get a little greasy on really hot summer days, but most of the time they are fine. I got to run 2 events in the rain and that's where these tires really shine compared to some of the other tires in this category. Other competitors with AWD cars, who weren't running RE-11s, seemed to have less traction in the wet compared to myself. I'll be buying another set of these for the 2013 season, and with the added suspension modifications they should perform even better.