New Z/28.R Camaro debuts at 2.5-hour race ahead of 52nd annual Rolex 24  at Daytona this weekend. Stevenson Motorsports and CKS Autosport will be campaigning Z/28.R racecars in the GS class of the IMSA Continental Tires SportsCar Challenge, kicking off the 12-race 2014 season. “The original Camaro Z/28 was designed for racing and became an iconic performance car through its hard-fought victories,” said Mark Kent, director of racing for Chevrolet. “A new chapter in racing begins this w...