You’re looking at a Mazzei Formula Five—or, rather, the Mazzei Formula Five. It’s a one-off supercar built by David Mazzei, combining a Superlite SL-C kit car body with a homemade five-rotor engine.

While Rob Dahm’s garage is no stranger to monstrous rotary engines, including four-rotor units cranking out more than 1,000 horsepower, this one is mind-bending. Here we have a massive, ...

Take our advice right now. Turn your volume up, but be aware that the sound you're about to hear could cause permanent damage to the speakers. If you're in public, it might also cause waves of Formula ...