Mustang GTD represents the pinnacle of Mustang performance. Ford said it benefits from lessons learned by the Ford Performance Motorsports and Multimatic Motorsports Mustang GT3 program, in particular around aerodynamics and setup for tracks such as the Nürburgring. However, Mustang GTD isn’t subject to the rules and regulations of GT3 racing, which prohibit much of the technology that allow a sub-seven-minute Nürburgring lap.That includes carbon-ceramic brakes, active aerodynamics, a supercharger, and semi-active suspension. A carbon-fiber body is familiar from GT3 racing, and while the Mustang GTD that completed the sub-seven-minute lap was entirely stock, it did include motorsports-derived safety gear mandated by the Nürburgring including a competition seat with a five-point harness and a roll cage. Ford Motor is hardly the first company to use a speed run as a marketing ploy, however meaningless it is when the green flag waves in a real race, AutoInformed notes.