Nota4re, with the 18" Hoosiers, I went with P315/30ZR18 on the 10.5" rims, the car is a lot lower. I had to use boards to keep the front defuser from hitting when loading the car. Talked with a couple of race teams up at Indy at the Continual Tire Challenge (racing Boss 302R's) and they recommended I set the fronts at 3 to 3.5 deg. out with the Hoosier tires. May have this done over the winter. I turned the fastest laps at Autobahn I have ever ran, passed everything in me grope and never felt like I was close to trouble. Headed for Gingerman this weekend for the last run of the year.