the street. You should be able to get about 10k miles of Nitto DR's, not sure about the BFG's other than it's less than the Nittos. Sidewalls can be a little stiff though, but will suffice as long as you don't get crazy in the corners. Personally, since you have enough cash for a Stage XII Z...why not just get some slicks and slap them on some rims you can change out while at the track