It seems Ford might have another version of the GT coming soon, and the secret lies in the owner’s manual. There are two places that mention a “competition series” model, and the main difference has to do with the rear hatch. Reading the tea leaves, this yet-to-be-announced variant seems to be focused on reduced weight.
We first caught light of this from the DragTimes YouTube channel. We took a look at the owner’s manual ourselves, which you can see here, and sure enough, there are two places where the competition version is mentioned.
Page 42 of the manual is where this other GT competition series first crops up. Apparently, it uses a slightly different key fob that lacks a remote hatch release, as well as the “key-blade” inside the fob for manually opening the rear hatch. The reason you might need to do this is if the battery dies and you need access to the manual door releases inside the engine bay.