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New Mach 4 Trademark Filing Suggests Ford Mustang Four Door Going Global

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Ford Motor Company has filed to trademark “Mach 4” with the Intellectual Property Office New Zealand (IPONZ), Ford Authority has learned.

Filed on February 25th, 2025, under serial number 1286084, this application contain the goods and services description of “motor vehicles, namely gasoline and electric automobiles, pick-up trucks, sport utility vehicles and their structural parts.”

The Ford Authority Take

As Ford Authority reported back in February, FoMoCo recently filed to trademark “Mach 4” with the United States Patent and Trademark Office (USPTO). This filing was particularly notable given the fact that Mach 4 could wind up being the name used on the long-rumored four-door version of the Ford Mustang, which is a concept that has existed since the pony car debuted decades ago, and yet, has only intensified as of late. Now, that same trademark filing has surfaced in the country of New Zealand, too – in addition to its neighbor, Australia.

Rumors of a four-door Ford Mustang have swirled for many years to this point, and in fact, that very concept dates back to a time when the first example of the original, first-generation pony car had even been sold. Back in the fall of 2018, word got out that The Blue Oval was thinking about building a four-door Ford Mustang sedan, and about a month later, Ford reportedly showed such a concept to dealers. Then, in June 2020, a report surfaced claiming that a four-door Mustang was indeed “on the table,” but it was a few years before that rumor intensified.

Then, in May 2024, Ford CEO Jim Farley himself said that he “believes” the automaker could make a four-door Mustang, so long as it has “all the performance and attitude of the original.” A few months later, in August, Ford reportedly showed a number of renderings, mockups, and photos of some future Ford Mustang variants, which included a four-door coupe reportedly called the Mach 4, as well as a lifted, off-road, Baja-style model with rugged tires, an RTR-modified Mustang EcoBoost with a $40k price tag, and a high-performance, V8-powered convertible that looked a lot like the older Shelby GT350/GT500 variants, albeit, sans any Shelby badging. Just this past January, Executive Chairman Bill Ford didn’t rule out a four-door Mustang, either.

As Ford Authority exclusively reported last September, Ford actually created a design study of a four-door Mustang sedan based on the S197  generation model some time ago. The automaker even went so far as to create a full-scale model of this Mustang sedan around 2005, though unfortunately, photos of that model are unavailable, and like all design studies, this was an internal concept that was never shown to the public. Obviously, that model never came to fruition, though now, the reality of a Ford Mustang sedan seems to be as strong a possibility as it ever has been, given the appearance of this new trademark filing.

Brett's lost track of all the Fords he's owned over the years and how much he's spent modifying them, but his current money pits include an S550 Mustang and 13th gen F-150.

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Brett Foote

Brett's lost track of all the Fords he's owned over the years and how much he's spent modifying them, but his current money pits include an S550 Mustang and 13th gen F-150.

View Comments

  • “We don’t make commodity products.” Jim Farley.

    Then he tries really hard to turn the Mustang into a commodity product. Can’t make this up. Every iconic nameplate Ford has done this to has been killed off in their history. Someone on the last post mentioned Thunderbird and that’s exactly what the Mustang is about to be.

  • I hope they do not call it Mustang, Crown Victoria is what we want, Sedan, Wagon, Police Interseptor, etc., could have done ten years ago.

    • Because of the Mach E and the upcoming Mustang sedan. The Mustang Mustang coupe will continue. Looking a what appears to be a blue with white stripes GT500 sedan. It makes sense that Ford will also offer a Mustang Mach 4 performance Sedan. Dodge sold tons of Performance Charger Sedans. I believe Ford will do the same with the Mustang sedan.

  • That would be like GM producing a four door Corvette. (a dumb idea) Leave the Mustang what it was meant to be a Coupe Mussel Car, just the way it is.
    And bring back the Fusion, or rename it call it the Taurus, Torino, Mondeo, Capri, Five Hundred,
    MC-X (Mich. Central X-press) or the Fusion MC-X Hybrid.
    PLEASE, DON'T MESS WITH THE MUSTANG, it's our Sports Car

    • GM is currently working on a Corvette Sedan. Porsche already offers one. Mustang sales are slow except for the Mach E so a sedan will help keep the Mustang coupe in the lineup. Looking at what appears to be a Blue with white stripes GT500 in the article. I would think Ford will offer a performance Mustang sedan. If you want a Mustang coupe. They'll still be around even if with a sedan version. It seems you forget how many performance Chargers Dodge sold. GM is talking about a C8 Sedan. Porsche is already manufactured one.. Im curious why does Ford building a mustang sedan effect the mustang coupe Because it doesn't.

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