Earlier this week, we wrote about a wild rendering that combined a 1965 Ford Mustang GT350 Fastback body with a Dodge Challenger Hellcat front clip, and sitting on the chassis of a 2001 BMW 325i.

We’ve since gotten in touch with the shop that commissioned the rendering and is actually building a car based on it. A build born out of opportunity, the team at Custom FN Customs calls it Project Wallenstein and it predates the rendering.

The team has published a few videos about the project, which you can watch below (warning: NSFW language).

Read Also: A Californian Custom Shop Is Building A ’65 Mustang-Bodied BMW E46 With A Challenger Hellcat Front Clip

It all started when a customer brought in the Mustang shell. Pieced together from multiple fastbacks, the shell was a bit of a hodgepodge and the amount of work required to square it and prepare it scared the owner off. He instead opted to sell it to Custom FN Customs for the princely sum of $500.

The team remembered that it had a 2001 BMW 325i lying around from before the shop had even been founded. Running out of space to store both, they decided to simply merge the two. As you can see in the videos, they simply chopped off the body of the BMW placed the modified Mustang shell on it.

About a week later, Chris Davis, the shop’s social media editor, was reading about the Chrysler Pacifica Hellcat van rendering, which we have featured previously.

“I brought [the Pacifica] to Rick’s attention, told him ‘We need to make this build happen!'” Davis told Carscoops. “We then reached out to [Abimelec Designs], and he saw what we were building and wanted to create a render for us, now the rest is history so to speak.”

Since it combines a Mustang with a BMW chassis, the team at Custom FN Customs thought they better find a name for the car that referenced that heritage. They landed on Wallenstein, the name of a German purebred horse.

Intended as a drift car, the team expects to swap out the standard engine and replace it with an N63 4.4-liter BMW V8. According to Davis, their tuner can get it to churn out around 1,000 hp (1,014 PS/756 kW).

When it’s all back together, Custom FN Customs plans to take Project Wallenstein to SEMA in 2022 along with another build that combines a 1972 K5 Blazer with a 2009 Cadillac Escalade. If you’d like to see what that will look like, keep an eye out on Abimelec’s Instagram page, because the artist is currently rendering it, too, and it should be ready in 2022.