Too late to edit, but it was Rolls Royce trying to stage Wankel rotors for a Diesel engine, not Mercedes. The Mercedes (Daimler-Benz) attempt was a modified ro

Too late to edit, but it was Rolls Royce trying to stage Wankel rotors for a Diesel engine, not Mercedes. The Mercedes (Daimler-Benz) attempt was a modified rotor shape to increase compression. https://en.wikipedia.org/wiki/Wankel_Diesel_engine https://en.wikipedia.org/wiki/Wankel_Diesel_engine