We're used to seeing German tuners giving BMWs, Audis, and Porsches the aftermarket treatment, but what you're looking at here is a German take on an all-American muscle car. GeigerCars is no stranger to modifying iconic American cars, and its new bonkers project called "Cerberus" is based on the already-insane 2019 Dodge Challenger SRT Hellcat.

In standard form, the 2019 Hellcat already produces 717 horsepower, while the limited-production Demon increases the output to a tire-shredding 840 hp. GeigerCars still thinks there's room for improvement, however, and has increased the Challenger Hellcat's output up to 890 hp and 751 lb-ft of torque. This still falls short of Hennessey's wild 1,032 hp Hellcat, but it's still an impressive upgrade.

This huge increase was made possible thanks to tweaks made to the supercharger and ECU. To make sure the drivetrain can cope with all this extra muscle, GeigerCars has added a reinforced 4-inch propeller shaft and a Brembo braking system with six-piston calipers and four-piston calipers at the rear axle.

As for the exterior, the German tuner adds a set of Devil's Rim wheels that were originally created for the Demon but are available to order for the Hellcat. The upgraded muscle car also gets a widebody kit as seen on the Challenger Redeye, along with a bespoke hood based on the Demon design with a wide, narrow scoop. Elsewhere, GeigerCars has added some eye-catching stripes and a scary-looking version of the demon dog on both sides. It isn't subtle, but then neither is the Dodge Challenger SRT Hellcat.

Inside, the interior has been left untouched from the factory. GeigerCars had the cabin trimmed in high-quality leather upholstery in Demonic Red covering the seats and parts of the door trims with contrasting black leather covering the rest of the interior. The Cerberus also features a Uconnect infotainment system with a large 8.4-inch screen and 18 speakers, available with a navigation system at an additional charge.

GeigerCars is charging €129,000 for the modified muscle car, which translates to around $144,570 in the US. That's more than double the cost of a standard Dodge Challenger SRT Hellcat, which starts at $58,995.