In Ford’s resurgent racing program of the eighties, Mustang figured prominently from the beginning in 1981. In International MotorSports Association (IMSA) GT racing, the turbocharged Miller Mustang, driven by Klaus Ludwig, came within a 10th of a second of winning its first race over the dominant Porsche 935 Turbos. Ludwig then made the threat a reality with back-to-back victories at Brainerd and Sears Point.
Tom Gloy put a Mustang back in a Trans-Am winner’s circle for the first time in a decade when he won the 1981 season finale at Sears Point.
And, in SCCA road racing, Mustang became the first domestic car ever to win the Showroom Stock ,a national championship, when Ron Smaldone drove his turbo Mustang to victory at Road Atlanta.
Source: Ford press