Screencap via Rob Dahm

“Project Ahura” is the world’s first all-wheel-drive four-rotor FD Mazda RX-7, and it’s exactly as insane as you’d expect it to be. It was built from a car that YouTuber Rob Dahm had since he was a teenager, and he’s here with a tour of everything under the hood that makes it work.

Rotaries—even four-rotor ones—tend to be small, but fitting this build in with an all-wheel-drive drivetrain was a unique challenge that Dahm explains. Garrett’s largest ball-bearing turbo is nearly half the size of the engine, for one. The suspension design was based on Ken Block’s insane Hoonicorn.

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Dahm says the car ultimately cost several hundred thousand dollars to build, complete with the professionally-built custom 2.6-liter four-rotor engine that was shipped from New Zealand. The ham-fisted jamokes at UPS lost it for months.

Bonus: the car was assembled in NHRA hall-of-famer and rotary guru Abel Ibarra’s shop, which has plenty of eye candy of its own.