The GT range features a 4.0-litre biturbo V8 engine; in the GT Roadster this generates 476 hp, while the GT C Roadster adds an additional 81 hp (557 hp). The GT Roadster can sprint from 0 to 62 mph in 4.0 seconds, while in the GT C Roadster it takes just 3.7 seconds. The GT Roadster emits 219 g/km of CO2 and delivers up to 30.1 mpg on the combined cycle, meanwhile the GT C Roadster emits 259 g/km and can achieve 24.8 mpg.
Both roadsters come with a three-layer fabric roof available in one of three colours (black, beige or dark red) at no extra cost. The roof opens or closes electrically in around eleven seconds, and can be operated at speeds of up to 31 mph.
The GT Roadster comes as standard with 19-inch alloy wheels; AMG Panamericana grille; wind deflector; AMG performance exhaust system; heated AMG sports seats with Airscarf; and black Nappa leather upholstery.
The GT C Roadster has 19/20-inch alloy wheels (front/back); Burmester surround sound; Parktronic with reversing camera; AMG sports seats with Airscarf; Keyless-Go package; Active Air Control system (flaps in the lower front bumper adjust according to the vehicle speed – thus increasing high-speed stability and reducing drag); AMG Panamericana grille; AMG performance steering wheel finished in Nappa leather and Dinamica microfibre; and red brake calipers with ‘AMG’ lettering.
The Premium equipment line costs £4,195 (standard on GT C Roadster), and includes Keyless-Go package; Mirror package; door sill panels in brushed stainless steel with ‘AMG’ lettering; Burmester surround sound system; Parktronic with reversing camera.