Vorsteiner Unveils Widebody BMW M4 GTRS at SEMA
Vorsteiner has introduced the BMW M4 GTRS at the 2014 SEMA Show, featuring a carbon fibre widebody kit and bespoke aero components while retaining the standard M4’s powertrain.
Vorsteiner presented its BMW M4 GTRS widebody kit at the 2014 SEMA Show, expanding on the tuner’s previous GTS package with a more aggressive approach to bodywork and aerodynamics. The GTRS kit is constructed entirely from carbon fibre, with new front and rear bumpers, a prominent built-in splitter, ventilated front and rear fenders, and extended aero side elements.
The kit also includes a custom rear diffuser and special badging. Vorsteiner fits the car with 20-inch glossy brushed shadow alloy wheels, wrapped in Pirelli tyres, and offers 90mm quad exhaust tips in either brushed or diamond black finish. Inside, buyers get embroidered floor and boot mats, rounding out the bespoke detailing.
Engine and performance
Vorsteiner’s GTRS package leaves the M4’s mechanicals untouched. The car keeps BMW’s 3.0-litre twin-turbocharged straight-six engine, producing 431hp and 550Nm of torque. Performance remains identical to the standard M4, with 0-62mph in 4.1 seconds and an electronically limited top speed of 155mph (250km/h).
Design and market positioning
Vorsteiner positions the GTRS as a more extreme follow-up to its earlier GTS kit, targeting M4 owners seeking a track-inspired look without sacrificing the reliability or drivability of the factory powertrain. The extensive use of carbon fibre reduces unsprung weight in the body panels, but the main appeal is visual impact and exclusivity. The GTRS is not a limited production model, but its cost and complexity mean it will remain a rare sight.
The package is aimed at enthusiasts who want to stand out at shows or on the road, without moving away from BMW’s original engine and handling setup. For those interested in more extreme factory engineering, BMW’s own M3 GTS offers a different approach:BMW M3 GTS: Track-Ready Engineering Meets Road Use
