Tires seemed fine to me. First car I've had with Pirelli's. Ran them at spec inflation of 36 psi. It was about 60 degrees out, and I think there was some improvement in traction as they warmed up. It might also have been that I was driving better after a few laps around the track. Although this wasn't a race, we were permitted to pass if the car in front was slow, and I assure you several Ferrari's got to see what my taillights look like. Since most gains on the track come from executing the turns well, I interpret this as testament that the F can hold on rather well.