Chevrolet is coming to SEMA fully loaded, with this Inferno Orange COPO Camaro Convertible representing one of the more eye-catching models of its comprehensive lineup. 69 COPO Camaro race cars were built this year. This is one of only two convertibles built, one of the 20 to get the 327 engine and Whipple supercharger rated at 550 horsepower and the only one to get a Turbo 400 three-speed automatic transmission (hard as it is to believe they're still making three-speed transmissions when others have eight).