KTM revealed that upcoming street-legal editions of the super-light, go-kart-like X-Bow will feature an engine sourced from the Audi TT RS. The new powerhouse is an upgrade over the Audi 2.0 liter TFS1 turbocharged engine that appeared in the “R” version of the vehicle. The TT RS engine boasts 2.5 liters and five turbocharged cylinders good for 360 hp and 343 lb-ft of torque — that’s stock. At this year’s Geneva Motor Show, KTM CEO Stefan Pierer revealed that the modified version of the engine will be capable of closer to 480 hp.