Six years ago, racing driver and car tuner Rob Dahm announced turning a tri-rotor Mazda RX-7 into a daily-drivable racecar with one extra rotor and four driven wheels. The project has proven to be exceptionally difficult to carry out, but it is now officially complete.
At the SEMA show earlier this week, Dahm’s RX-7 did not catch too many glances with its mostly-stock exterior, but as soon as he fired up the engine, the car ripped the air with the soundtrack of a purebred Le Mans racer and spit fire from its side pipes. You can see and hear it for yourself in the 8-minute video below.
Per the project specifications, the rebuilt Wankel engine – which now commands over four rotors instead of three – churns out 1,257 PS (1,240 hp / 924 kW) to both axles thanks to an all-wheel-drive system borrowed from a Nissan GT-R.