The 2026 Mustang RTR Spec 5 is not a Mustang you stumble upon every day. Limited to just 50 examples in the U.S., it represents the most capable evolution of RTR’s work so far. Born from more than 15 years of motorsport-driven innovation and Ford partnerships, this Spec 5 takes design, engineering, and raw performance to a different level.
RTR’s DNA on Display
RTR has never been about repeating what others do. Their philosophy blends street presence with track confidence. The Spec 5 makes this clear, combining a composite widebody system with exposed carbon fiber elements that sharpen the look while improving function. Components like the carbon chin splitter, wake towers, and rocker splitters bring motorsport precision into a road car package.
Personalization and Detail
Each Spec 5 owner gets more than just performance. The car can be customized with RTR’s extended palette, including premium and paint-to-sample finishes. For the first time, RTR is also offering unique color-shift paints such as Mystichrome and Urban Bamboozle. Wheel choices extend the personalization even further, with forged aluminum Aero 5 Evo wheels in finishes like Forged Charcoal, Podium Champagne, or Vapor Silver. The end result is a car tailored to taste, not just a generic build.
Built for Street and Track
While many special-edition Mustangs lean one way or the other, the Spec 5 balances both. Its suspension uses RTR’s Tactical Performance system with 30-way adjustable coilovers and sway bars. Brembo six-piston front and four-piston rear brakes pair with upgraded two-piece rotors to keep the supercharged beast under control. Michelin Pilot Sport 4S tires wrap around wide 20-inch forged wheels, offering 305-section rubber up front and massive 315-section tires at the rear.
Interior with Motorsport Touches
Inside, RTR keeps the focus sharp. Recaro sport seats trimmed in leather and suede give support, while a serialized dash plaque engraved with Vaughn Gittin Jr.’s signature marks its exclusivity. Even the shift knob and floor mats are bespoke. The electronic drift brake, co-developed with Ford, links the car directly to RTR’s motorsport success, giving owners an authentic competition-derived feature.
Power and Performance
The highlight of the 2026 Mustang RTR Spec 5 is under the hood. A supercharged 5.0-liter V8 with a 3.0L Stage 2 Whipple system pushes output beyond 870 horsepower and 660 lb-ft of torque. Cooling comes from an HD Race Intercooler, while exhaust notes are tuned by Vaughn Gittin Jr. through an RTR by Borla Cat-Back system. Buyers can choose between a six-speed manual or a ten-speed automatic transmission, each offering its own way to handle this sheer force.
Final Word
The 2026 Mustang RTR Spec 5 is more than a modified Mustang GT. It’s a carefully engineered machine limited in number, shaped by motorsport lessons, and built for drivers who want serious performance without compromise. At $159,999, it’s not an everyday option, but for 50 owners, it represents one of the purest modern expressions of Mustang performance.
Disclaimer: Content on this site is for informational purposes only. Vehicle specs, pricing, and availability may change. Always verify details with official sources before making decisions. Opinions are those of the authors.
Source: RTR Vehicules
