John Buttermore of Wixom, Michigan won the first Sports Car Club of America National Championship of his career last week at Road America in Elkhart Lake, Wisconsin. Buttermore is a GM engineer and Corvette enthusiast. He races his Corvette in SCCA's elite Touring 1 class - in this class, some bolt-on performance modifications are allowed, but the cars are still fundamentally street-legal and based on actual cars taken off the production line.
This year's Touring 1 race was a testament to the dominance of the Corvette at this level of sports car development. Of the 12 cars entered in the race, 11 were Corvettes - including all of the podium finishers and well down the standings. The Ferrari 360 and Dodge Viper are also eligible in the class, but only one Viper raced this year.
You can read the whole race recap in my Corvette Motorsports area.