The Subaru WRX STI Type RA NBR Special is the new king of the Green Hell, after besting the sedan category in world-performance fashion, lapping in under seven minutes on the demanding course.
The new lap record for a four-door sedan stands in line at 6 minutes and 57.5 seconds, and it’s actually on par with the Porsche 918 Spyder’s 6:57 – which was until late last year the overall record holder, until the cavalcade of new models – led by the Lamborghini Huracan Performante – took charge of lowering the threshold. There’s one catch – the NBR Special is not a production car. Instead it’s a Prodrive-built one-off machine that took a 2017 WRX STI and outfitted a rally-spec 2.0-liter turbocharged flat four-cylinder that is capable of 600 horsepower (474 kilowatts). A World-Rally-Championship-spec gearbox is also sending power to all four wheels.
This is actually the same prototype used by Subaru at the Isle of Man TT course and for sprinting up the Goodwood Hill Climb, but with a new evolution coming with a different body kit for improved handling, including an active rear wing. Instead, 500 units of the Type RA will be developed to be street legal, coming out early in 2018. The STI will pack the 2.5-liter turbocharged flat four, massaged for 310 horsepower (231 kilowatts).