Roland A. Bussink commissioned HWA AG – a company that develops components for AMG. Hans-Werner Aufrecht is the founder of HWA AG, as well as one of the founders of AMG. Officially, Mercedes still don’t have a Speedster as the bespoke AMG GTR is not actually developed by AMG. However, HWA’s connection to AMG makes it the next best thing.

The AMG GTR Speedster draws inspiration from the SLR Stirling Moss, as well as Formula One. Its most distinctive feature is the Y-shaped “Speedbow”. It starts from where the windshield used to be – you still get a small Barchetta-style windshield – and finishes behind the headrests, connecting with the rear of the car. It bears striking resemblance to the Halo used in current Formula One cars. In addition to giving it unique and striking new looks, the element provides structural rigidity.

Initially, the car started life as an AMG GT R Convertible, which made the conversion slightly easier, as less cutting was required. But it’s not just a matter of chopping the roof off. There are many other chassis enhancements, ensuring superior structural rigidity.

You can choose to have the 4.0-liter twin-turbo V-8 in stock trim – 577 horsepower and 516 pound-feet (700 Nm) or you can have HWA bring it up to a mind-blowing 850 horsepower and 767 pound-feet (1,040 Nm).

For comparison, the McLaren Elva engine is generating 803 horsepower, while the Aston Martin V-12 Speedster – “only” 700. There will be only five copies of the Bussink GTR SpeedLegend.

Source: Bussink