Current prices range from $126,600 to $136,000 for the KTM X-BOW 2018, respectively. Buy. Specs & Price. KTM reveals future GT2 racer As a result, the quartet achieved the first finish for the SPX version of the KTM X-BOW GT2, which was participating in a 24-hour race for the first time at the Nürburgring. “It was a milestone in the development of the car and, above all, a huge relief for the crew after months of preparation,” said Michael Wölfling, Managing Director of Developed with long-time partner Reiter Engineering, the GTX is powered by Audi ’s 2.5-litre turbocharged five-pot in a 532bhp, 479lb ft state of tune. Combined with its claimed 1048kg weight BlOs8.