I recently attended the Grand-Am races at the Mid-Ohio Sports Car Course. In the Continental Tire Sports Car Challenge, many of the cars were running a very light, strong street wheel, the Kosei K1 Racing wheel. These wheels have been used for years by club racers driving Mazdas to BMWs. A number of the front-running BMW 3-Series racecars at Mid-Ohio were on the Kosei wheel. And all the cars in this series were running Continental racing tires.
The series consisted of great door-to-door racing with a lot of banging. The BMWs using the Kosei K1 Racing wheels took the top three spots in the Grand Sport class. You can run this same wheel on your street car!