The GT R Roadster uses a handbuilt biturbo 4.0-litre V8 engine, which has an output of 585 hp and 700 Nm of torque. It can travel from 0 to 62 mph in 3.6 seconds and has an electronically limited top speed of 197 mph. It can achieve between 16.9–22.6 mpg (WLTP) on the combined cycle and emits 284 g/km of CO2 (NEDC).
The Roadster features a triple-layered light-weight fabric soft top with a structure consisting of aluminium, magnesium and steel which is fitted with an acoustic mat to reduce noise. The soft top can be opened and closed within 11 seconds and can be operated at speeds of up to 31 mph. It is available in a choice of three colours: black, red or beige.
The GT R Roadster comes as standard with LED High Performance headlights with Adaptive Highbeam Assist; active aerodynamics which allows more precise handling and better road adhesion; AMG performance seats in Style Exclusive nappa leather upholstery; AMG performance exhaust; AMG Drive Unit including traction control; manually adjustable aerofoil; yellow brake calipers; climatised seats with memory package; air scarf with neck level heating; Driving Assistance pack including Active Distance Distronic and Blind Spot Assist; 10.25-inch media display and 12.3-inch digital instrument cluster; Burmester high end surround sound system; AMG Interior Night package; AMG matt carbon fibre trim including centre console and door trim strip in carbon fibre; and DINAMICA roof liner.
For £5,995, customers can add the AMG high-performance ceramic composite braking system.