What is it?
Onwards, friends, leaving no niche unturned, just as much in the super-sports car category as Mercedes is doing in the small family car segment. This is the Mercedes-AMG GT Roadster in ‘R’ form and it takes the GT’s total number of derivatives to 16, across the two-door sports car’s coupé and roadster derivatives.
The R Roadster is one of the weirder ones in the line-up because if you imagine a Porsche 911 GT3 RS Convertible, that’s kind of where we are. The R Roadster has the second-most-focused GT chassis set-up (behind only the GT R Pro) and is meant to be a Nürburgring monster, but here comes with a soft-top body, which, you’ll know, usually means some dynamic compromises.
The aerodynamic, mechanical and dynamic specifications of the R Coupé and Roadster, then, are similar. There’s a big fixed wing (which looks a bit odd on the roadster), a 577bhp/516lb ft tune for the 4.0-litre V8, adjustable dampers, active rear steer and a wider track than on the GT C, the next model down in the range.
The R’s roof and body strengthening are the same as other GT roadsters, meaning a three-layer fabric hood and a kerb weight some 80kg heavier than the R coupé’s, leaving it at 1710kg. That is the first reason why this is a curious derivative: if you want the best driver’s variant of a car, adding 80kg to it is not usually how you’d go about it.