Now, that very name, "Mach 4," has been trademarked by Ford, as of Feb. 2025, as reported on by Ford Authority. Apparently, Ford didn’t stop at a Mustang sedan.

A four-door Mustang wouldn't be terribly difficult to pull off—we imagine Ford would merely stretch the current S650-generation platform, extending the wheelbase and adding a rear door.

The Ford Mach 4 could be the brand's first sedan since 2020 A four-door muscle car from the Blue Oval could be the right move. ... 2024 Land Rover Defender V8 review: Still wild at heart Watch More ...

First spotted by Ford Authority, a trademark filing from February 25th shows that Ford filed to register the name "Mach 4." In the filing description, it says that this is for "Motor vehicles ...

Two of the dealers revealed that Ford referred to the Mustang sedan as a “Mach-4” because puns are great and, well, that also sounds pretty cool. Apparently, Ford didn’t stop at a Mustang sedan.

Now, it’s been revealed that Ford has filed a trademark for the name “Mach 4” with the United States Patent and Trademark Office. Read: Ford Teases Dealers With 4-Door And Off-Road Mustangs ...

A four-door Mustang coupe appears to be closer than ever to becoming a reality, because as of Tuesday, as Ford has officially filed to trademark the name “Mach 4” for a motor vehicle.

Two of the dealers revealed that Ford referred to the Mustang sedan as a “Mach-4” because puns are great and, well, that also sounds pretty cool. Apparently, Ford didn’t stop at a Mustang sedan.