While General Motors has it doubters among stock analysts about it electrification strategy, Cadillac and Corvette posted convincing wins during electrifying racing at Sebring this weekend. It was an all-Cadillac podium in the top DPI class, as it swept the top three spots in an incident and mistake-filled 24-hour race. The three Cadillacs, finished within 14.616 seconds of each other The 351 laps completed were a Sebring record for the DPi class, topping the previous mark set last year by two laps. It was the 61st IMSA WeatherTech SportsCar Championship victory for Chip Ganassi Racing and second at Sebring.