Question: how many rotors are in a rx7?
Answer: By now, you've probably heard that YouTuber Rob Dahm is building an outrageous FD Mazda RX-7 featuring a four-rotor Wankel engine. It's an engine layout that's never been used in a production car before—every factory rotary vehicle has come with only two, at most three, rotors in its spinny-triangle engine.