Toyo Tire U.S.A. Corp. and the National Auto Sport Association (NASA) have announced the creation of the Toyo Tires GT Challenge, a new class that features equally prepared Porsche Cayman GT4 Clubsport and GT4 Clubsport MR race cars competing on 18-inch Toyo Proxes RR DOT competition tires.

The inaugural race will take place during the 2017 NASA 25 Hours of Thunderhill presented by Hawk Performance.

The new GT Challenge class is the first spec tire program in the 15-year history of the 25 Hours, the longest endurance race in North America. The class is supported by a lucrative contingency program where the winning team in this class will receive a $5,000 cash reward from Toyo Tires. https://www.nasaproracing.com/contingencies

The 2017 race will set the stage for the 2018 NASA 25 Hours when NASA plans to expand the class to include many other manufacturers.