Jim and Mike Ring asked themselves a question for SEMA 2025. What would the final boss in a John Wick film drive?
The answer is KINGPIN, a reimagined 1969 Ford Mustang Mach 1 that blends classic muscle heritage with modern technology and luxury craftsmanship.
The Wisconsin-based brothers spent over 5,500 hours building this masterpiece.
Every piece has been touched and updated with sharpening the original design cues in mind. The result surpasses the factory model in both power and presence.
A Wegner Motorsports 5.0-litre Coyote V8 with Whipple supercharger produces over 800 horsepower.
Power flows through a Bowler Transmissions Carbon Edition six-speed manual gearbox to the rear wheels.
Custom-fabricated Ringbrothers headers and a Flowmaster Super 44 Series stainless steel exhaust amplify the engine’s roar. The soundtrack matches the car’s intimidating presence perfectly.
Extensive metalwork transformed the body. The front widened by two inches. The rear gained 3.5 inches.
The wheelbase stretched forward 1.5 inches. A custom-engineered roll cage adds safety and rigidity.
The Roadster Shop FAST TRACK Stage III chassis got converted back to a unibody structure. HRE Vintage Series 517 wheels wear Michelin Pilot Sport 4S tyres.
Fox RS single-adjustable coilovers and independent Roadster Shop FAST TRACK suspension handle each corner. Massive Brembo brakes provide stopping power worthy of the go.
Carbon fibre covers nearly everything. Hood, grille surround, lower front valance, rear diffuser, lowered rear quarter panels with custom vents, and interior accents all get the lightweight treatment.
The handcrafted body wears BASF Bootleg Black paint contrasted by Grab-Her Green trim. That’s a playful nod to Ford’s Grabber Green but darker with villainous undertones.
Jim Ring explained the philosophy that the Mustang Mach 1 has always been an aggressive-looking car. The client wanted sinister aesthetics.
They asked themselves what a John Wick final boss would drive. This was the result. Everything cued off the Mustang’s original design but they ramped up the drama and sharpened the lines.
The cabin combines luxury with technology. A custom Ringbrothers ENYO crushed-carbon hoop steering wheel sits front and centre.
Dakota Digital gauges monitor vitals. Vintage Air Gen IV Magnum climate control keeps occupants comfortable. Upholstery and trim feature 3D-printed and machined brightwork throughout.
Ringbrothers have operated from Spring Green, Wisconsin since the early 1990s.
They started as an auto body shop and evolved into top-tier builders specialising in bespoke restomod muscle cars.
They typically build just one or two cars per year. Their meticulous craftsmanship and award-winning creations have earned them global recognition, and KINGPIN once again elevates American muscle car customisation.
