Vaughn Gittin Jr. builds cars that are ready to rock, and his North Carolina shop just proved it again. The latest machine is the Ford Mustang 870HP RTR Spec 5, a tightly controlled run capped at 50 cars per year.
Ford Mustang 870HP Goes Full Supercharged
Every Spec 5 starts as a standard V8 Mustang, with the 5.0-liter engine intact at its core. Adding a supercharger lifts output to 870 horsepower, a figure that makes the stock GT look polite. Still, the bones remain Ford’s, so the factory warranty carries over.
Meanwhile, the program shares DNA with the MANHART BMW XM, another tuner build that rations output to a handful of cars. On paper, that scarcity justifies the premium. In reality, it works because the demand already exists.
| ⚙️Engine / Powertrain | 5.0L Supercharged V8 |
| 🐎Power Output | 870 HP |
| ⚡Peak Torque | (est.) 740 lb-ft (1,003 Nm) |
| ⏱️0-60 mph (0-100 km/h) | (est.) 0-60 mph in 3.4s |
| 🚀Top Speed | (est.) 175 mph (282 km/h) |
| 🔄Drivetrain / Gearbox | 10-Speed Automatic / RWD |
| 💰Starting Price / Est. | $159,999 |
Suspension Tuning for Tail-Happy Fans
RTR fits its Tactical Performance suspension, featuring 30-way adjustable front coilovers plus adjustable front and rear sway bars. Owners can dial in ride height and stiffness, shifting the balance from neutral to tail-happy.
Treating the Ford Mustang 870HP as a canvas, RTR lets buyers pick their own compromise between grip and slide. Twenty-inch forged wheels wear Michelin Pilot Sport 4 S tires, while a Borla exhaust supplies the signature tone.
Scarcity Is the Real Selling Point
Each car starts at $159,999, and RTR is capping output at 50 examples annually. Three have been built so far, with customer deliveries already underway. Premium colors add $7,500, while Mystichrome finishes cost $15,000 more.
Ford’s performance lineup offers hot Mustangs, but few carry this level of exclusivity. Hipp hints the Spec 5 name could migrate to other Ford models, though a Bronco version remains unconfirmed. Expect these numbered cars to hold strong resale values as collectors chase limited builds.
Ultimately, the Spec 5 proves RTR can turn enthusiast credibility into a desirable limited product. Still, at nearly $160,000, buyers will expect flawless execution. Follow the latest on RTR’s program at Auto News Magazine.
Liam Campbell
Industry Intelligence & News Editor at Auto News Magazine. Tracking prototype spy shots, Nürburgring development mules, automaker corporate moves, and breaking global automotive scoops.
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