1.5l 4 cylinder, 500hp at 1.7bar and virtually no lag above 4000RPM with redline of 10200RPM. The turbo they use? Garrett journal bearing turbo from the Cosworth V6 F1 engine, circa 1986. Just shows you don't need billet wheels, dual ceramic ball bearings, pixie dust or any other magic... just proper wheel sizing, proper manifold, and proper engine management (that engine runs life racing ECU with DBW).