The 1970 Ford Mustang SportsRoof serves as the ultimate canvas for the “Hell Pony” custom build. This car represents a total transformation of the classic fastback silhouette into a modern performance titan. It wears a striking metallic blue finish accented by silver stripes and a matching hood scoop. Shaved doors and a smoothed decklid create a streamlined appearance that emphasizes its aggressive muscle car roots. Beyond the aesthetics, this machine was engineered to deliver a visceral driving experience on par with contemporary supercars. It integrates high-end components from the steering wheel to the rear axle for total mechanical harmony. Consequently, it remains a standout example of how to modernize a legend without losing its soul. It is a vehicle designed for those who demand both heritage and raw power.
Supercharged Coyote V-8 and Whipple Performance
The heart of this 1970 Ford Mustang SportsRoof is a 5.0-liter Coyote V-8 engine. This modern powerplant has been upgraded with a Whipple supercharger finished in color-matched blue. To ensure reliability under boost, the engine bay features fabricated inner fenders and an efficient aluminum radiator. Billet hood hinges and custom “Hell Pony” valve covers add a level of show-quality detail to the bay. This setup provides a massive increase in torque and horsepower compared to any original 1970 factory offering. Furthermore, the engine is paired with a Tremec five-speed manual transmission for total driver engagement. A Ford 9-inch rear end with a limited-slip differential ensures that the supercharged power is effectively translated to the pavement. It is a drivetrain built for high-speed stability and relentless acceleration.
Custom Mustang II Front End and Torque Arm Rear
The chassis of the 1970 Ford Mustang SportsRoof has been completely overhauled for superior handling. It features a Mustang II-style front end with tubular control arms and power rack-and-pinion steering. Out back, a Total Cost Involved torque-arm setup replaces the dated leaf springs for better cornering geometry. Ridetech adjustable coilovers are used at all four corners to allow for a perfectly tuned ride height and stiffness. Signature-Wheel alloy wheels are wrapped in staggered Nitto Invo tires to provide maximum mechanical grip. Wilwood six-piston front calipers and drilled rotors ensure that the car stops with the same intensity it accelerates. These upgrades transform the vintage pony car into a precise instrument capable of carving through technical canyon roads. It offers a level of confidence-inspiring control that the original chassis simply could not provide.
Bespoke Interior with Hell Pony Branding
Inside the 1970 Ford Mustang SportsRoof, the cabin has been reimagined as a luxurious and functional workspace. Bolstered front bucket seats are trimmed in black leather with gray microfiber inserts for a modern feel. The “Hell Pony” name is embroidered into the upholstery, marking this as a truly unique custom build. A fabricated center console houses dual cupholders and modern switches for the power windows. For safety during spirited driving, Schroth harnesses are installed to keep the occupants firmly in place. Vintage Air climate control ensures that the interior remains comfortable regardless of the weather outside. Every surface has been addressed to provide a premium environment that matches the high-performance nature of the car. It is a sanctuary of comfort that bridges the gap between classic style and modern luxury.
Advanced Audio and AutoMeter Cobalt Monitoring
The technology inside this 1970 Ford Mustang SportsRoof is as impressive as the mechanical work beneath it. A MOMO steering wheel is mounted to a tilting column ahead of a full set of AutoMeter Cobalt gauges. These instruments provide clear readouts for speed, boost, and vital engine temperatures at a quick glance. For entertainment, an Alpine touchscreen stereo serves as the hub for a high-end audio system. This setup includes Rockford Fosgate amplifiers and Kicker subwoofers hidden behind the rear seats. Dakota Digital controls handle the air conditioning, providing a clean and contemporary interface on the dashboard. This integration of modern tech ensures that the driver remains informed and entertained on every journey. It makes the car as suitable for a cross-country trip as it is for a car show.
Performance Output and Technical Specifications
Performance for the 1970 Ford Mustang SportsRoof is defined by its supercharged Coyote V-8 architecture. The Whipple supercharger provides a linear power delivery that makes the 5.0-liter engine feel massive throughout the rev range. With its five-speed Tremec gearbox, the driver has full control over the high-output mechanical symphony. The TCI torque-arm rear suspension eliminates wheel hop, allowing the car to put its power down efficiently. High-performance Wilwood brakes offer fade-free deceleration, which is crucial for a vehicle with this much speed potential. Its subframe connectors and reinforced floor plates ensure that the unibody can handle the stresses of modern performance. This technical package makes the “Hell Pony” one of the most capable restomods on the market today. It delivers a performance envelope that far exceeds its original 1970 specifications.
Final Summary
The 1970 Ford Mustang SportsRoof is a masterpiece that honors its lineage while embracing the future of performance. Every part of the “Hell Pony” build has been executed with an eye for detail and high-speed capability. From the supercharged V-8 to the bespoke leather interior, it offers a total package for the serious collector. The combination of classic fastback lines and 21st-century suspension makes it a versatile street machine. Since its acquisition in 2025, it has been maintained to the highest standards, showing only minimal mileage. As it enters the market through GT Auto Lounge, it represents a turnkey entry into elite restomod ownership. This Mustang is not just a car; it is a powerful statement of automotive art and engineering. It remains an icon that will continue to thrill enthusiasts for many years to come.
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Source: bringatrailer.com
