After years of dominating the Scottish drag scene (yes, there is one – we checked! – Ed.) with his EJ-powered, GC8 WRX, Andy Forrest sold his 8.87-second car to a Polish enthusiast and turned his attention towards building something more obscure. The chassis would be the same, but the powerplant would be something a little uncommon.

Sourcing the EG33 motor from the Subaru SVX, then adding a stroker crankshaft to up the displacement to 3.6 liters, this package offers sound, response, and acceleration unfamiliar to any stock WRX owner.

Though originally intended just for drag racing, a few aero tweaks and some new dampers made this car surprisingly quick on the road course, too.

With a set of modestly-sized GT35 turbos mated to their own, shorter header, the car builds boost quickly and makes full boost at 4,000 RPM. That powerband continues to 9,000 RPM, and within that range 1,200 peak horsepower is made. Incredibly, that powerband gives it a personality totally unlike any quick Subaru, and with the Modena six-speed sequential gearbox harnessing that powerband, there’s an urgency that is simply astonishing to see.

Putting 1,000+ horsepower to the ground, even with four-wheel drive, is no simple task, and so traction control, as well as the differentials, are managed by a clever Syvecs ECU. As visible from the onboard footage, the car is still slightly rear-biased, and is happy to light the back tires up slightly when the throttle is depressed.

Considering the boost has been lowered for the damp conditions in the above clip, the car still accelerates, in the wet, like a absolute rocket ship. Brushing nearly 160 MPH after a short squirt before the hairpin, the car appears to be quite a handful; spinning the tires in third and fourth gear, that is, until the Elise ahead loses it.

After witnessing how a comparatively underpowered machine handles on the greasy surface, the Subaru seems planted, composed, and almost relaxed – well, as relaxed as anything can be when spinning all four tires at triple-digit speeds.