excellent dry and wet grip, good tread wear rating, and runs pretty wide. Nice and quiet, too. I am using these on a corvette (front size, rear is 305/30/20), and they put the power down very nicely, much better than the oem runflats.Spectacular tires on my 2007 Audi RS4, significantly better than the Pirelli PZero Rosso tires these replaced.Thanks a lotI blew a tire and this was a great price for a great tire! I'd buy again in a second... shipped quick, too.Love these tires. Amazing grip! Good for daily use and track driving.This is the only thing that I minus 1 star. In the title, it is 19", but in the product specification.the rim diameter is 17".Actually it is 19" and fit well with my Audi S5. Less noisy than my old Dunlop tire. Fast delivery.Put on a 2006 BMW M3 --- great tiresQuick delivery. Awesome tires!!!!