This Volkswagen Golf race car was built for Karl Schagerl to compete in European hill climb competitions. Powering the Golf is a 2.0 TFSI inline-four built by Ramler Motorsport in Grafendorf, Austria. The company improved the Mk5 Golf based engine with forged internals, dry sump system, custom exhaust manifold and the direction injection replaced with a custom throttle body. The engine makes 600-630 horsepower and 650-725 Nm (479-534 lb-ft) of torque thanks to a larger turbocharger. Power goes through a KAPS six-speed sequential transmission and Golf Mk4 4-Motion drivetrain to all four wheels.
Source: NM2255 Car HD Videos and 19Bozzy92
The only thing that isn’t clear for me about this build is the oversteer capacity of this haldex … normale haldex based awd are prone to understeer… i think that they use an lsd in the front and an updated haldex control