Excellent track tire that lasts twice as much as a Hoosier and close too as performance. I made 56 heat cycles, and fronts still good for a few more. Perfect for DE on budget. Stiff sidewall needs less camber with good steering response. 245 front 275 rear, good balance of grip front to rear being lightly oversteering at limit. Good size for stock power Cayman S. Will buy again.