Frankiefiesta uses them. I didn't recommend them to you because you said you may do 1 or 2 autocross sessions and your car mostly sees street use. The RS R is a great tire, but it's not too great on the rain and won't last as long. Super sticky though. If you did more track time, I would've recommended these over the Evos. But if your gong to see more street use than track, the Evo is a better tire for u.