Pirelli P-Zero Corsa. Absolutely incredible grip when warmed up. It's really hard to believe how much harder they grip than max performance summer DOT tires, like the already good Michelin Pilot Sport, Bridgestone S-02 & S-03 (the S-02 is better than the S-03), Yokohama Advan Neova AD07, BF Goodrich g-Force T/A KD (which grip MUCH harder than the wet weather KDW and KDW2). Where to S-03 will spin uselessly powering out of a 2nd gear corner at even a reasonably sticky track (ie. Streets of Willow, after cleaning), the Corsa allow me to squeeze on the power pretty quickly. They don't last long at all though, and are rated at 60 treadwear.
