If you are engine fans like us, and we know you are, you’ve got to appreciate this video of a 12-Rotor Wankel engine. With a unique sound unlike any conventional engine, this 15.7-Liter monster spits, snorts and ultimately purrs to life in the video. Sit back and enjoy. If you want to know more abut this engine, visit the Car & Driver post that tipped us off to the video.