KTM has at last admitted to the presence of an ‘R’ version of the company’s four-wheeled superbike, the X-Bow. The X-Bow, in production for nearly three years, has shown that light, circuit-biased performance cars are not the sole preserve of British manufacturers. Using its accumulated motorcycle racing experience, KTM enlisted single-seater racing specialist Dallara to finesse the X-Bow’s chassis design – which is essentially a carbon-fibre tub with wheels.The X-Bow’s 800kg mass is shoved around by a 177kW Audi 2.0 TFSI engine. Performance is, unsurprisingly rapid, with a 0-100km/h benchmark time of 3.9 seconds. KTM knows that no matter how good the series production X-Bow is, there will always be customers willing to pay for a negligible increase in performance and guaranteed exclusivity. This is where the company’s new X-Bow R model enters the equation. S3 powered X-BowThough the car is due to go on sale early next year, KTM has refused to speculate on the new R model’s exact specifications or possible pricing. However, a collection of bespoke parts will increase the X-Bow’s already heady dynamics in R-trim. Powered by Audi’s S3 engine, it will feature an additional 11 units of power, peaking at 188kW. Currently, the X-Bow R is undergoing final technical validation at the world’s most demanding test venue - Germany’s Nurburgring.The X-Bow R is sure to appeal to those enthusiasts for whom exclusive badging is of greater value in the decision making process than an acquisition based purely on performance statistics.