The KTM X-Bow GT-XR now has two distinct new derivatives. Announced on 27 October, the Spyder introduces removable roof sections, while the EVO combines a more powerful five-cylinder engine with a substantial aerodynamic upgrade. The additions mark a significant expansion of the road-going X-Bow range under the sports-car business's new owners.
The Spyder retains the GT-XR's lightweight, racing-derived carbon-monocoque architecture but allows its roof sections to be removed and stored in the luggage compartment. A detachable roof-mounted aerodynamic element is intended to manage turbulence and wind noise with the roof open. KTM says the roof structure can withstand a load equivalent to roughly six times the vehicle's weight, although this is a manufacturer statement rather than an independently published test result.
The EVO takes a different approach. It combines the Factory 600 engine package with the EVO Aero Kit. Output from the Audi-derived turbocharged 2.5-litre five-cylinder rises from 500 to 600 PS, with torque increasing from 581 to 680 Nm. Hardware changes include a larger intake manifold, a revised turbocharger with an Inconel turbine wheel, an improved air intake and a more effective intercooler. The company quotes boost pressure of up to 2.9 bar.
The carbon-fibre aerodynamic package draws on the GT2 racing programme. It adds a front splitter, dive planes and louvres around the wheel arches to manage airflow. KTM says the components improve downforce and high-speed stability, but no independently measured aerodynamic figures have been published alongside the announcement.
There are changes for the regular GT-XR as well. A standard 7-inch multimedia display supports Apple CarPlay and Android Auto and doubles as a track-data screen for lap times, lateral forces and temperatures. Conventional folding carbon-fibre wing mirrors replace the formerly standard camera-based rear-view arrangement; the cameras remain available as an option. A road-legal Capristo-developed exhaust is now standard equipment, too.
Customers seeking a more individual specification can use the new ICONIX personalisation programme for colours, materials and bespoke details. The new range follows the acquisition of the X-Bow car business by Belgian investors led by rally-raid driver Guillaume De Mévius. More than 1,500 X-Bows have been built since the original model appeared in 2008, according to the company.