With the discontinuation of the RX-8, Mazda Motorsports has tapped the all-new Mazda6 as the foundation for its racing efforts. The car made its debut at the 2013 Rolex 24 at Daytona, where the manufacturer went after its 24th class win at the most famous endurance race in America. The Mazda6 race cars will be powered by the all-new SKYACTIV-D clean diesel engine and compete in the new GRAND-AM GX class. “We’re thrilled to be starting a new chapter of Mazda Motorsports history with the race debut of our all-new Mazda6 racecar, powered by our all-new production based SKYACTIV-D clean diesel engine. Our long-time engineering partner, SpeedSource, has led the technical development of the program in hand with Mazda engineers in Japan and the U.S.,” noted John Doonan, motorsports director, Mazda North American Operations. Unfortunately, all three Madza6 race cars retired after six hours at Daytona due to mechanical issues. They hope to have everything ready for the next race.