Michelin does make tires front and rear for the SRT10 that are nonrunflats. They are available at the Tire Rack. They make a huge difference in the handeling of the car. Last year I bought 18" wheels for the car so I could run nonrunflat tires because Michelin didn't offer the 19" as nonrunflat. Then low and behold they started offering the nonrunflats. Thats the curse of being the first one to put your car on the race track and finding out what needs to be changed. But the car does look better with the 18" gunmetal SX3R Forgeline wheels. Down side, you have to modify the emergency brake set up so that the 18" wheels will fit on the rear of the car or go without an emergency brake.