The overwhelming majority of the rotary engines ever produced have been the two-rotor variety. This is because, quite simply, 2 is generally enough. Even Mazda’s Le Mans winning monster, the 787B, had just four rotors. In 2011, there was a bit of vaporware from a Rotary Supercars which promised a 2,800-horsepower 8-rotor engine. But what you will see in the video below is real, and it has 12 rotors. Seriously, 12 rotors in one engine!
Wow if you liked that video be sure to check the out next one below.