Final assembly for the GTD is handled by Multimatic in Canada, which is the same company that builds the limited-edition Ford GT supercar plus other Mustang racers.

Source: https://www.ponokanews.com/autos/first-look-2025-ford-mustang-gtd/

Race down memory lane and you’ll discover the various suffixes that have been attached to it: GTA, GTB, GTC, GTD, and GTE are among the variations of the theme, and each one means something different.

Source: https://www.autoblog.com/2023/08/03/2023-volkswagen-golf-gti-road-test-review/

Roman has enjoyed a successful racing career so far, having finished third in the GTD class championship in the 2021 IMSA SportsCar Championship, North America's most prestigious endurance racing series.

Source: https://www.cbc.ca/news/canada/windsor/windsor-racing-driver-daytona-1.6725841?cmp=rss

The Mustang GTD, just debuted at Car Week, is basically the company's Mustang GT3 race car, for the road — but it’s even more hardcore than the race car, if you can believe it.

Source: https://www.autoblog.com/2023/08/19/ford-ceo-its-the-right-time-to-build-the-mustang-gtd-supercar/