The 2026 Mustang RTR Spec 5 on a white and hyperlime background, showcasing RTR's evolution of design and performance

The Apex of Performance

The most capable Mustang RTR ever produced — limited to 50 units within the US for the 2026 model year.

The 2026 Mustang RTR Spec 5 is the ultimate expression of what RTR stands for. It’s the result of more than 15 years of pushing design, engineering, and performance further than ever before. This isn’t about chasing our peers or repeating what’s been done before — the Spec 5 is born straight from our core DNA. Every curve, every component, and every ounce of power is built to embody what it means to be Ready to Rock™. This is the most capable and modern, yet aggressive, Mustang RTR® ever offered, created for those who demand the absolute best.

Created for the street, the track, and every mile in between

RTR Vehicles is more than a performance brand. We are a company fueled by passion, competition, and the belief that driving should always be an exciting experience. For the last 15 years, our DNA has been forged through relentless innovation, proven on the track and trail through motorsport championships, and strengthened by our strategic partnership with Ford. Every RTR is rigorously tested, designed, and developed in the RTR Lab, and built to OEM+ standards that meet or exceed Ford’s own benchmarks.

Silhouette of a car with text 'This isn't a concept' and '9.25.25' on a dark background, featuring the RTR Vehicles logo.

Not Just another Supercharged Mustang

Under the hood is a supercharged 5.0L V8 paired with a 3.0L Stage 2 Whipple Supercharger System that produces over 870+ horsepower and 660 lb-ft of torque. An HD Race Intercooler keeps things cool under extreme conditions, while the RTR by BORLA Cat-Back Active Exhaust System — meticulously tuned to perfection by Vaughn Gittin Jr. — delivers a sound that hits just as hard as the power it unleashes. Spec 5 can be optioned with a 6-speed manual or a 10-speed automatic transmission. Either way, you’re in command of a machine that was built to thrill.

A widebody system without compromise

The 2026 Spec 5 introduces the next evolution of RTR’s Widebody System. These aren’t bolt-on flares; this is a fully integrated system that redefines what a widebody Mustang should be. Each component has been meticulously engineered to flow seamlessly to complement the Mustang’s body lines. All mounting points are hidden beneath the surface, eliminating exterior hardware from being seen. The result is a precise fit and finish so refined that it looks as if it rolled straight off the assembly line this way.

  • Composite Widebody System Components: front fenders, bumper extensions, rocker panels, rear quarters with tire cooling vents, wheel arches with ducts, and felt liners.
  • Exposed Carbon Fiber Components: chin splitter, wake tower assemblies (front and rear), rocker splitters, and rear quarter splitters.
  • Bespoke Fuel Door: engineered with billet arms, a laser-printed nylon bucket, and a vertical over-center motion. It accepts all 50-state nozzles and keeps the OEM push-to-open function intact.

This system isn’t just about looks — it’s about attitude, engineering, and functionality coming together in a way only we can deliver.

Standard Components & Pricing

The 2026 Mustang RTR Spec 5 starts at $159,999, which includes the base Mustang GT 401A with Performance Package.

Note: This vehicle is not available for sale in the State of California

Powertrain Components

  • 870+ HP and 660 LB.-FT. TQ 3.0-liter Whipple Stage 2 Supercharger System and HD Race Intercooler System 
  • RTR by BORLA Cat-Back Active Exhaust System 

Widebody System Components

RTR Composite Widebody System Components

  • Composite Widebody Front Fenders 
  • Composite Front Bumper Extensions 
  • Composite Upper Rocker Panels 
  • Composite Widebody Rear Quarter Panels with Integrated Tire Cooling Vents 
  • Felt Front Fender Liners 
  • Composite Rear Wheel Arches with Tire Cooling Ducts 
  • Bespoke Fuel Door with Vertical Over-Center Motion 

RTR Exposed Carbon Widebody System Components

  • RTR Carbon Fiber Chin Splitter 
  • RTR Carbon Fiber Wake Tower Assemblies (Front and Rear) 
  • RTR Carbon Fiber Rocker Splitters 
  • RTR Carbon Fiber Rear Quarter Splitters 

Exterior Components

  • RTR Extended Color Palette Standard Paint Option 
  • RTR Upper Grille with LED Air Intakes 
  • RTR Lower Grille 
  • RTR Corner Grilles 
  • RTR Undertray Extension 
  • RTR Hood Vent 
  • RTR Decklid Spoiler 
  • RTR Exterior Badging including RTR Grille Badge, "Spec 5" Brushed Grille Badge, RTR Brushed Front Wake Tower Badges, & RTR Decklid Badge
  • RTR Extended Speed Block Graphics Package
  • RTR Windshield Banner 

Wheels, Tires & Suspension Components

  • RTR Tactical Performance Adjustable Coilover Suspension System 
  • RTR Tactical Performance Adjustable Sway Bars (Front & Rear) 
  • Two-Piece Front Rotors 
  • RTR 20-inch Aero 5 Evo Forged Aluminum Wheels available in Forged Charcoal, Podium Champagne or Vapor Silver
  • Michelin Pilot Sport 4S Tires (305/30/R20 Front and 315/30/R20 Rear)
  • Lug Nut Kit & TPMS 

Interior Components

  • Serialized Dash Plaque Engraved with Vaughn Gittin Jr.’s Signature 
  • RTR Performance Shift Knob (Automatic or Manual) 
  • RTR Leather Covered RECARO Sport Seats
  • RTR Floor Mats 

Additional Components 

  • RTR Key Fob Clamshell 
  • RTR Puddle Lamps 
  • Motorcraft 5W-50 Full Synthetic Oil Change (10 quarts) 
  • Certificate of Authenticity
  • 3 Year/36,000 Mile Warranty 

Optional Upgrades: 

  • Premium Paint - $7,500
  • Paint-to-Sample - $15,000
  • RTR QuickFit Pro Harnesses (Driver & Passenger) - $1,199 
The 2026 Mustang RTR Spec 5 all color options including standard and premium options

Personalization without limits

Every Mustang RTR Spec 5 owner has the opportunity to personalize their vehicle with a standard color from the RTR Extended Color Palette, included in the base price, or elevate it with premium and paint-to-sample options for a truly bespoke finish. 

As part of the experience, each owner receives a render of their Spec 5 showcasing their chosen exterior color alongside the three available wheel finishes. For paint-to-sample selections, RTR also provides a custom render and a physical speed shape painted in the selected color for final approval, making the customization process every bit as thrilling as the performance it delivers.

Exclusive to the Spec 5 is the new Extended Speed Block Graphics Package, blending inspiration from RTR’s Formula Drift Spec 5-FD Mustangs with pinstripe fade design printed on the vinyl that is inspired by Creative Director Lindsay Ross’ hand-drawn sketches. Combined with brushed exterior badging on the grille and front carbon fiber wake towers, these details push the Spec 5’s modern, aggressive identity even further.

Paint Options

Standard Paint Options

  • Avalanche Grey
  • Fashion Grey
  • Grabber Blue
  • Gulf Orange
  • Hyper Lime
  • Leadfoot Grey
  • NATO Olive
  • Rosso Scuderia
  • Shadow Black

Premium Paint Options

(Optional Upgrade +$7,500)

  • Antimatter Blue
  • Blu Corsa
  • Caribbean Blue Pearl
  • Lightning Silver
  • Midnight Purple
  • Millennium Jade
  • Oak Green
  • Soul Red
  • Xenon Grey

Color Shift Paint & Paint-to-Sample Options

(Optional Upgrade +$15,000)

  • Mystichrome
  • Urban Bamboozle
  • Paint-to-Sample
Close-up of the 2026 Mustang RTR Spec 5's Forged RTR wheel on a white background

Where Style Meets Pavement

The brand-new RTR Aero 5 Evo Forged Wheels are a bold evolution of our Aero 5 wheel design. Available in Forged Charcoal, Podium Champagne, and Vapor Silver, these forged aluminum wheels feature lightning pockets, paint-matched machined center caps, and a stance that demands your attention. Michelin Pilot Sport 4S tires—305/30R20 on a 10.5-inch wide wheel in the front and a 315/30R20 on an 11-inch wide wheel in the rear—maximize grip and everyday drivability.

Braking power is provided by Brembo 6-piston front and 4-piston rear calipers, paired with upgraded 2-piece front rotors for increased braking performance.

The RTR Tactical Performance Suspension System features proprietary 30-way adjustable front coilovers and rear dampers, paired with height-adjustable springs and adjustable front and rear sway bars. Each system is purpose-tuned by RTR engineers and test drivers, preset for a balanced blend of street and track performance. The result is a chassis that is confidence-inspiring, responsive, and easy to drive, while still giving owners the flexibility to fine-tune suspension settings to their preferences.

inspiring confidence inside and out

Inside, the Spec 5 is just as bold as its exterior. RTR Leather RECARO Sport Seats feature Cool Grey bolsters, black suede supports, and ribbed inserts inspired by historic vehicles like the Ford GT. The debossed RTR is a subtle reminder that you’re driving one of the baddest RTR Mustangs to date.

A serialized dash plaque engraved with Vaughn Gittin Jr.’s signature, the ergonomic RTR Performance Shift Knob, RTR floor mats, and a certificate of authenticity make every Spec 5 uniquely yours.

Every car also comes with the factory Electronic Drift Brake, co-developed by Vaughn and Ford. It’s not just a feature — it’s a direct connection to RTR’s motorsport DNA, giving you the tools to initiate drifts and maneuvers with confidence.

Vaughn Gittin Jr and a group of RTR Owners stand with a Hyper Lime Mustang RTR Spec 3 in front of the RTR Lab

Join The RTR Community

Owning a Spec 5 is more than just a set of keys and a car in your driveway. You’re invited into the RTR community, a global network of passionate automotive enthusiasts. 

From VIP experiences at Formula Drift and off-road events, to private gatherings at the RTR Lab, Spec 5 owners get behind-the-scenes access to Vaughn and the RTR Team. Every mile behind the wheel is a reminder that you’re not just driving a car — you’re part of something bigger.

Available to All, Not for Everyone

RTR Vehicles isn’t about building cars for everyone; we’re about building cars for the ones who get it. Production of the 2026 Mustang RTR Spec 5 is limited to just 50 units per year within the US. Each one is priced at $159,999, including the base Mustang GT 401A with Performance Package.

Start your Spec 5 journey by filling out the form below, and our Concierge Team will guide you through the customization and ordering process.

The only question left is, are you Ready to Rock?

*NOTE: Contact RTR or your local dealer for more information. All Internet prices do not include TAX, TAG, TITLE, REGISTRATION and DEALER FEES. The vehicle photos shown may be examples for display purposes only. Pricing throughout this website may not include options that might have been installed at the dealership.