Ringbrothers has once again set the bar at SEMA 2025, this time by reimagining one of Ford’s most aggressive pony cars. The new 1969 Mustang KINGPIN restomod is the Wisconsin-based builder’s latest creation, a 1969 Mach 1 that combines sinister aesthetics, modern engineering, and breathtaking handcrafted metalwork. This build was a 5,500-hour endeavor, resulting in a machine that is as detailed as it is powerful. The theme was clear: “We asked ourselves, ‘What would the final boss in a John Wick film drive?’ This was the result,” said co-owner Jim Ring.
800-Plus Horsepower of Supercharged Coyote Power
At the heart of KINGPIN is a modern powerhouse: a Wegner Motorsports 5.0-liter Coyote V8. That engine is topped with a massive Whipple supercharger, a combination that pushes out well over 800 horsepower. All that power is channeled through a Bowler Transmissions Carbon Edition six-speed manual gearbox. The car’s distinctive voice comes from a set of custom-fabricated headers by Ringbrothers, which run into a full Flowmaster Super 44 stainless-steel exhaust system.
The 1969 Mustang KINGPIN Restomod Chassis
The foundation of this 1969 Mustang KINGPIN Restomod is just as exotic as its engine. It started as a Roadster Shop Fast Track Stage III platform, which Ringbrothers then re-engineered and converted back into a unibody structure for ultimate rigidity. The bodywork is extensive, with the car widened two inches up front and 3.5 inches at the rear. The wheelbase was also stretched an additional 1.5 inches, perfecting the car’s stance and improving high-speed handling.
Sinister Design and Carbon Details
The final boss aesthetic is achieved with a custom BASF shade of Bootleg Black, accented by Grab-Her Green trim—a moody, shifted version of Ford’s classic color. The body features a host of one-off, 3D-printed, and carbon-fiber components, including the hood, grille surround, lower front valance, rear diffuser, and tail panel.
The car rides on Fox RS single-adjustable coilovers and HRE Vintage Series 517 wheels wrapped in wide Michelin Pilot Sport 4S tires. Massive Brembo brakes handle stopping duties.
A Handcrafted Modern Cockpit
The 5,500 hours of labor are truly evident in the cabin. The interior is a showcase of modern materials and old-school style. It features 3D-printed and machined trim, a custom Ringbrothers ENYO crushed-carbon steering wheel, a full suite of Dakota Digital gauges, and a Vintage Air Gen IV Magnum climate-control system. Every surface was reinterpreted to feel like a modern evolution of the Mach 1’s cockpit while maintaining its unmistakable heritage.
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