Not a 12-cylinder engine, a triple-turbo 12-rotor engine. A 15.7-liter rotary engine. This is insane, and so is Rob Dahm.
The Wankel rotary engine, most notably used in automobiles ... CC-BY-SA-3.0 by Y_tambe via Wikimedia Common The rotor is a triangle shape, but the sides bow out. Many rotors are also use cupped ...