RTR Vehicles has unleashed its wildest pony yet—the 2026 Mustang Spec 5. At $159,999, the latest RTR creation costs almost $95,000 more than Ford’s new Dark Horse Mustang, yet still undercuts the Shelby Super Snake. Exclusivity helps soften the sticker shock: only 50 examples of the Spec 5 will roll out for the 2026 model year.
At its core, the Spec 5 starts life as a Mustang GT with the Performance Package, but RTR doesn’t leave much untouched. Under the hood, the familiar 5.0-liter Coyote V-8 gets force-fed by a Whipple 3.0-liter supercharger, an HD race intercooler, and a Borla cat-back exhaust. The result is a monstrous 882 horsepower and 894 Nm of torque—that’s nearly 400 more horses than a stock GT and even more grunt than Ford’s track-ready Mustang GTD. Buyers can row their own gears with a six-speed manual or opt for the 10-speed automatic.
The upgrades continue under the skin. RTR equips the coupe with its Tactical Performance suspension system, featuring adjustable shocks, height-adjustable springs, and beefier anti-roll bars. 20-inch forged aluminum wheels wrapped in Michelin Pilot Sport 4S tires put the power to the ground, while six-piston Brembos with two-piece rotors rein it all back in.
The exterior isn’t shy about its intentions. The Spec 5 wears a wide-body kit with unique fenders, bumper extensions, composite side skirts, and a vented hood. Carbon-fiber aero bits, a towering rear spoiler, and RTR’s illuminated grille treatment add to the visual punch. Even the fuel-filler cap has been redesigned to flip upward—something RTR curiously brags about as a symbol of its “relentless dedication to detail.”
Inside, the changes are subtler but purposeful. Expect RTR-branded Recaro seats with gray leather bolsters, black suede trim, and Vaughn Gittin Jr.’s signature etched into a serialized dash plate. Other touches include RTR floor mats and a teardrop shifter.
With its limited run of 50 cars, outrageous power figures, and brash styling, the Spec 5 is aimed at collectors as much as drivers. Whether its nearly $160K price tag makes sense when a Mustang GTD exists—or whether that even matters to the few lucky buyers—is another story.
One thing’s clear: the Spec 5 cements RTR’s reputation for turning Ford’s pony car into something that looks—and sounds—like it escaped from a racetrack.
Source: RTR Vehicles