CarBuzz has discovered that Mazda has filed six fresh patents with the Japanese Patent Office, all published at the beginning of June 2023, detailing new designs for a two-rotor Wankel rotary engine. The number of rotors is important here, as two rotors imply a proper engine driving the wheels rather than the single-rotor design of the 8C range extender, as found in the unusual MX-30 e-Skyactiv R-EV plug-in hybrid.