Selling four OEM Nissan 300ZX Z32 Twin turbo rear 8.5" wheels with new Kuhmo Victoracer V700 tires in P245 45R16 size. All four wheels are the 8.5" (TT rear) size. These fit fine on the front, and having all four wheels the same size makes for better opportunity to rotate tires front/rear as the fronts wear much faster at the track than the rears.
Additionally all tires were heat cycled by Tire Rack for better durability. Two of the tires still show the factory printing on the tread, and have never even been mounted. The other two have ~ 100 miles on them, temporarily used on the street when one of my street tires was flat. The wheels vary cosmetically. However, all are 100% straight and were perfectly stable at 120MPH+ (on the track, of course).
Don't kill your nice street tires at the autocross or track! These tires completely transform the car and are good for at least a couple seconds per run autocrossing, while still retaining the stock classification for SCCA autocross (Just don't tell that the fronts are 8.5" instead of the stock 7.5" width) :)