When Ford’s PR folks sent over the window sticker for the Mustang Mach 1 that was set to be dropped off at my first door, the first thing I did was check to see what sort of gearbox it had. The second thing I did was sigh. My otherwise-wonderfully-specced tester would be arriving with a 10-speed automatic sending power to the rear wheels, not the six-speed manual that comes standard.
Sure, the automatic received its fair share of changes for Mustang Mach 1 duty: the torque converter has been upgraded and reprogrammed for more aggressive operations, and there’s a second air-to-oil cooler. But the Mach 1’s manual gearbox is sourced from the excellent Shelby GT350, which has gone off into that good night for the 2021 model year. Also, well…it’s a V8-powered Mustang. If there’s one car that deserves to have its engine wound out through a manual transmission even if it compromises overall performance in the name of driving fun, it’s an eight-cylinder ‘Stang.
After a long weekend of driving to (and around) the empty winding roads of the Adirondacks and back again, I can decisively say the Mach 1 is indeed a delightful machine to whip around — not just straight-line fast, but a well-rounded performance machine. I just wish my left leg had had more to do.
What is the Mustang Mach 1?

The Mach 1 (not to be confused with the Mach-E, which is a very different proposition) is the middleweight contender in the Mustang’s lineup, performance-wise — wedged between the welterweight Mustang GT and the heavyweight Shelby GT500. It’s also a de facto replacement for the Mustang Bullitt, with which it shares its 480-horsepower and 420-lb-ft output.
But the Bullitt didn’t get all the performance goodies that Ford scooped out of the Shelby bins for use in the Mach 1. The GT500 contributed its rear axle cooling system, toe link and diffuser; from the now-defunct GT350 came its front and rear subframes, intake manifold, engine oil cooler and oil-filter adapter. (And, of course, its six-speed manual.) In other words: Ford packed the Mach 1 with the goodies needed to help it not just survive track usage, but thrive under it.