Mazda’s latest patent signals a return of the legendary rotary engine, reimagined as a hybrid power source for a new ...

of torque at 2,000 rpm. Or 497 hp (371 kW) at 3,200 rpm. Or nearly 1,400 hp (1,044 kW) at 8,500 rpm, all on 87-octane pump gas. Garvin says the engine is designed to be run as high as 14,000 rpm.

it produces 73bhp at 4700rpm and 85lb ft of torque slightly lower down the rev-band at 4000rpm. Being integrated into a range extender-style plug-in hybrid, the rotary engine doesn’t actually ...