The new Mercedes-AMG GT Roadster has gone on sale - priced from £110,145 OTR.

It's joined by the AMG GT C Roadster - which starts at £139,445 OTR and the range-topping AMG GT R, available from £143,245 OTR.

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 3.7 seconds.

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 – 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.

At the top of the GT range, the AMG GT R Coupé pumps out 585 hp and 700 Nm and can sprint from 0 to 62 mph in 3.6 seconds. The GT R comes as standard with AMG sports bucket seats; carbon fibre roof; AMG Panamericana grille; GT R bodystyling; yellow brake calipers; performance exhaust system; static rear aerofoil; sports bucket seats; 19/20-inch alloy wheels (front/back); Parktronic, AMG Interior Night package (including: black door sills; steering wheel gear shift panels in black; black inserts below head restraints; black strut in the luggage compartment); sports tyres; and AMG performance steering wheel in black Dinamica microfibre. A Premium package is also available on the AMG GT R – for £4,195 – with the addition of heated seats.

An AMG Track package costs £1,685 and adds four point seat belt harnesses; a fire extinguisher; and a roll cage. Carbon ceramic brakes can be added for £5,995. The AMG green hell magno paint – as seen from the car’s launch – is a £7,500 option. Yellow seat belts are also optionally available for £395.

The AMG Carbon Fibre package costs £3,895 and adds exterior styling details with a carbon fibre finish. The AMG Matt Black Carbon Fibre Trim package costs £2,995 and adds carbon fibre detailing to the interior trim.