Dealer Disclaimer: Must present a copy of this ad to dealer at time of sale in order to receive the advertised price shown. Price and payments shown are plus tax, tag, title, and Georgia WRA. Price and payments shown include all factory rebates and dealer discounts applicable to the general public. Price subject to change. Art for illustration purposes only. Must choose from dealer stock to receive prices shown. Payments shown are with approved credit. Like Dislike 2025 Ford Mustang RTR Spec 3 Overview & Performance The 2025 Mustang RTR Spec 3 is a highperformance Mustang GT coupe built by RTR Vehicles (Ready to Rock), a shop founded by twotime Formula Drift champion Vaughn Gittin Jr. It sits between the Spec 2 (handling/aesthetic upgrades) and the Spec 5 (widebody + Borla exhaust) in RTRs lineup MotorTrend . Key Specs Engine: Stock 5.0L Coyote V8 + Whipple 3.0L supercharger (Ford Racing certified) Output: 810 hp / 615 lbft torque Car and Driver +1 Transmission: 6speed manual or 10speed automatic Drivetrain: Rearwheel drive Suspension: RTR Tactical Performance 30way adjustable shocks, coiloverlowering springs, adjustable sway bars MotorTrend Wheels/Tires: Staggered 20 RTR Tech 5 wheels, Nitto NT555 G2 summer tires Bring a Trailer +1 Brakes: Brembo (6piston front, 4piston rear) Bring a Trailer Aero: Chin splitter, rocker extensions, decklid spoiler, hood vent, LED air intakes, RTR Speed Block graphics Bring a Trailer +1 Interior: Black & gray leather, RTR embossed seats, digital gauge cluster, performance shift knob Bring a Trailer +1 Price: Around $107,450 MSRP ; astested examples can exceed $109,000 Car and Driver +1 Performance Highlights 060 mph: ~ 4.7 seconds (manual) vs. stock GTs 4.2 s Car and Driver Quartermile: ~ 12.7 s @ 121 mph (manual) vs. GTs 12.5 s @ 114 mph Car and Driver Braking: 700 ft in 163 ft (manual) vs. GTs 153 ft Car and Driver Skidpad: 0.92 g vs. GTs 0.99 g Car and Driver Pros Massive power gain over stock GT (324 hp more) Car and Driver RTRs tuning expertise and aggressive styling Driftfriendly suspension and wide tires MotorTrend Highend interior and performancefocused build Cons Track performance lags stock GT despite more power poor traction and braking Car and Driver Brakes not upgraded to match power MotorTrend Overpriced compared to stock GT or lowertier RTR models Car and Driver Some mods are cosmetic; aerodynamics are modest MotorTrend Bottom Line The RTR Spec 3 is a powerhungry, trackinspired Mustang that excels in spirited driving and looks aggressive, but doesnt outperform the stock GT on the track . Its best suited for owners who want a heavily modified, showready Mustang with RTRs signature style and performance parts, rather than a pure trackdominant machine. If you value raw acceleration and braking over looks, the stock GT may be a better value. This vehicle won't last long, take it home today. You can finally stop searching... You've found the one you've been looking for. This is about the time when you're saying it is too good to be true, and let us be the one's to tell you, it is absolutely true. The Ford Mustang RTR Spec 3 will provide you with everything you have always wanted in a car -- Quality, Reliability, and Character. Introducing the 2026 Mustang RTR Spec 3, the pinnacle of performance in the RTR lineup. Under the hood is the latest 3.0L Ford Performance Whipple Supercharger, delivering an exhilarating 810 horsepower and 615 lb-ft of torque. Mustang RTR Spec 3 comes standard with staggered RTR wheels, a feature previously available only as an option on other Mustang RTR Spec vehicles. The 2026 Mustang RTR Spec 3 is designed to push the boundaries of power and performance, embodying the Ready to Rock spirit in every aspect.