Rendering created by AutoGuide.com staffRendering created by AutoGuide.com staffFor years, the idea of a four-door Mustang has floated around as little more than an internet rumor. Now, comments from a senior Ford executive suggest there may be more substance behind the speculation than previously thought.Speaking with Automotive News, Ford Blue and Model e President Andrew Frick hinted that any future sedan from Ford would likely need to fit within an existing vehicle family. In Ford's current lineup, that leaves one obvious candidate.AdvertisementAdvertisement"We're looking to expand on the Mustang family as we move forward," Frick said when discussing the possibility of new sedan offerings.He stopped short of confirming a four-door Mustang, but his comments are likely to reignite rumors that have been circulating for more than a year.Rendering created by AutoGuide.com staffRendering created by AutoGuide.com staffThe idea of expanding the Mustang beyond its traditional coupe and convertible roots is no longer controversial inside Ford. The company already put the badge on an electric crossover with the Mustang Mach-E. While that decision initially divided enthusiasts, the Mach-E has become an important part of Ford's lineup and proved that the company is willing to stretch the Mustang brand into new segments.AdvertisementAdvertisementFord CEO Jim Farley hinted at a broader Mustang family back in 2024, saying the company could pursue additional body styles as long as they delivered the same performance character and attitude that buyers expect from a Mustang.A few months later, reports surfaced claiming Ford had privately shown dealers a four-door Mustang sedan, allegedly called the Mach-4, alongside an off-road-inspired Mustang variant.Ford has never publicly confirmed those reports.Rendering created by AutoGuide.com staffRendering created by AutoGuide.com staffWhy A Mustang Sedan Makes SenseFord's North American lineup has been without a traditional sedan since the Fusion ended production in 2020. Before that, the company had already retired the Fiesta, Focus, Taurus, and other passenger cars as consumer demand shifted toward SUVs and trucks.AdvertisementAdvertisementToday, the Mustang stands as Ford's only remaining car.At the same time, Ford's Flat Rock Assembly Plant in Michigan has excess capacity. The facility once built the Fusion, Lincoln Continental, and Mazda6 alongside the Mustang. Today, Mustang production is the plant's primary responsibility.Adding a four-door Mustang could help increase production volume while leveraging an existing platform and brand name rather than requiring Ford to develop an entirely new sedan from scratch.That's particularly important as Ford works to launch a series of more affordable vehicles expected to start below $40,000.Image: FordImage: FordWhat Could Power A Mustang Sedan?Ford hasn't revealed any details, but a hypothetical Mustang sedan would likely share much of its hardware with the existing Mustang coupe.AdvertisementAdvertisementThat could mean turbocharged EcoBoost four-cylinder and 5.0-liter V8 options, along with performance variants carrying GT or Dark Horse branding. There could also be an opportunity for Ford to finally introduce an EcoBoost V6 to the Mustang lineup, something the automaker has shied away from doing so far.The challenge would be ensuring the car feels like a Mustang rather than simply wearing the badge.Given the mixed reactions that often accompany any Mustang expansion, Ford will likely be careful to preserve the performance credentials that have defined the model for more than six decades.Become an AutoGuide insider. Get the latest from the automotive world first by subscribing to our newsletter here.