A wild Mercedes-AMG GT speedster, officially dubbed the Bussink GT S Speedlegend, is up for grabs at the Bonhams auction at this year’s Goodwood Festival of Speed. This car is based on the Mercedes-AMG GT S Roadster, reimagined by car collector and entrepreneur Ronald A. Bussink to turn it into a roofless, windscreenless speedster to rival the McLaren Elva.
Bussink collaborated with HWA AG, a German company that assembles sports cars and components for Daimler and Mercedes-AMG and built the racing V12 for the Pagani Huayra R , to transform his concept into reality.
The Bussink GT S Speedlegend is a contemporary interpretation of a modern high-performance car aiming to deliver a Formula 1-like driving experience. In GT S Speedlegend form, this is a more sedate alternative to the similarly-styled GT R Speedlegend built from the AMG GT R and limited to just five examples.
The GT S Roadster’s windshield and pillars were removed and replaced with Bussink’s “Speedbow” design, inspired by the halo seen on modern Formula 1 cars. It is made of carbon fiber and extends from the hood to the headrests. This distinguishes the vehicle from the standard Mercedes-AMG GT S Roadster that debuted in 2019 and also provides an element of rollover protection and structural rigidity to the chassis.
The Bussink GT S Speedlegend also has a sliver of wraparound glass, but this isn’t a windshield so much as it is a wind deflector. Bussink calls it the 180-degree “Speedwindow,” giving an open-air driving experience and a slight buffer from the wind up to a point; we’d still recommend driving with a pair of goggles.
The car is finished in designo Selenite Grey paint with a matte finish, pairing nicely with the exposed carbon fiber of the rollover hoops and Speedbow. Inside, this particular Bussink GT S Speedlegend has an exclusive creme leather interior.
The car is powered by a 4.0-liter twin-turbo V8 engine that delivers 515 horsepower and 494 lb-ft of torque mated to a seven-speed dual-clutch gearbox. It is also equipped with an electronically controlled limited-slip differential and adaptive suspension from the factory, meaning Bussink’s efforts in adapting the car focused purely on the styling and nothing mechanical.
Bonhams estimates it will sell for £550,000 – £750,000 or approximately $722,000 to $985,000 when it goes under the hammer today.