For its 10th anniversary, renowned aftermarket company Vorsteiner has
developed a special limited edition vehicle which will debut at the 2014 SEMA
The GTRS4 kit for the 2015 BMW M4 Coupe is a full lightweight carbon composite wide body conversion that retains full functionality and everyday drivability of the vehicle, according to Vorsteiner. They weren't satisfied with just making the widest possible fender as it was also dictated by the ability of the wheel to turn while under load at high or low speeds. They crafted air ducts for optimal cooling towards the front brakes, while paying attention to aerodynamic ventilation for the inbound air to exit.
The front fenders have a total span of 4 inches while the rear quarter panels sit 7 inches wider than it's original form. Specially designed 3-Piece Forged wheels in 20x10.5J and 20x13.5J respectively fit the 275 and 345 width tires.
Vorsteiner also wanted to ensure the design paid tribute to M3 racing heritage and lineage while still maintaining the minimalistic Vorsteiner concept.
The vehicle is fitted with Pirelli's signature P Nero tires for optimal traction and performance.
To add to the stance, the BMW M4 GTRS4 by Vorsteiner features KW Suspension's sleeve kit allowing for height adjustment as well as keeping the original BMW Dynamic Drive features.
Adding to the performance, the BMW M4 GTRS4 by Vorsteiner is upgraded using ESS Tuning's E-Tronic for an impressive 550 hp to the crank.