Not a 12-cylinder engine, a triple-turbo 12-rotor engine. A 15.7-liter rotary engine. This is insane, and so is Rob Dahm.

Mazda’s CEO said the response to the Iconic-SP concept was good enough to restart rotary engine development, too.

The tool used for the job was a heavily modified Mazda RX-7 which uses a quad-rotor rotary engine, similar to the insane Le Mans 787b engine. It produces around 750hp (560kW), and is connected up ...