The Wisconsin-based shop Ringbrothers has made a name for itself in recent years with restomod versions of the Dodge Charger, Buick Grand National, and De Tomaso Pantera. Its latest is a reimagining of a 1969 Ford Mustang Mach 1, now much more terrifying than the original.

The Ringbrothers Kingpin was unveiled at the Specialty Equipment Market Association show (SEMA) in Las Vegas, which is a haven for aftermarket wizards, tuners, and auto tinkerers of all stripes. As such, it is also the show where tuning shops and many traditional automakers show their latest one-off and few-off creations.

The Kingpin is one of its offerings this year, an intimidating V-8 monster that makes over 800 horsepower and is blacked out. The 5.0-liter Coyote V-8 engine is the highlight, though the styling catches the eye, and Ringbrothers says this is a “complete reimagining” of the 1969 Ford Mustang Mach 1, itself a looker of a car. The engine is mated to a six-speed manual transmission that sends the power to the rear wheels; the exhaust is also custom, made to accentuate that V-8’s roar.

The car was made for a client who wanted a Ford Mustang Mach 1 but with modern updates, and even more in-your-face details.

“The Mustang Mach 1 has always been an aggressive-looking car, and the client was adamant about creating a sinister aesthetic. We asked ourselves, ‘What would the final boss in a John Wick film drive?’ This was the result,” Jim Ring, co-owner of Ringbrothers, said in a statement. “Everything was cued off the Mustang’s original design, but we ramped up the drama, sharpened the lines, and added a number of one-off and 3-D-printed details to make it truly stand out.”

On the outside, Ringbrothers added lots of carbon, including the rear tail panel, rear diffuser, rear quarter panels, hood, grille surround, and in the interior. A custom green highlights the trim on the outside, while the inside has been updated, too, with some 3-D-printed touches, new gauges, and a custom steering wheel.

Ringbrothers says they spent “5,500 meticulous build hours” on the Kingpin, and it shows. The tuner did not disclose what the client paid for the restomod, though. The car is probably best admired right now, at SEMA, in its natural habitat.

Click here for more photos of the Ringbrothers Kingpin.