Mercedes-AMG GT C Coupe revealed

Mercedes-AMG has revealed the hard-top coupé sibling of the GT C Roadster at the Detroit motor show alongside updated versions of the GT and GT S.

The GT C Coupe slots between the GT S and GT R and makes use of a reworked twin-turbocharged 4.0-litre V8 that produces 557hp and 681Nm of torque. The GT C Coupe weighs in 1,660kg, which is 35kg more than the GT C Roadster. It accelerates from 0-100kph in 3.7sec and has a top speed of 315kph; both numbers are identical to the Roadster.

Borrowed from the GT R is a rear track that’s 57mm wider than the GT and GT S, as well as rear axle steering. Additionally, a wider rear apron, also taken from the GT R, improves airflow at the back while also giving the car a more muscular look.

Like the GT S, the GT C also comes as standard with AMG Ride Control sports suspension with adaptive and adjustable dampers. This is a more road-friendly setup than the GT R’s track-focused coilover springs. There’s also an electronically controlled rear limited-slip differential that’s integrated into the transmission housing.

The GT C Coupé will initially be available in an Edition 50 guise to mark the 50th anniversary of AMG. The limited run Edition 50s come in two exclusive paint finishes: Designo graphite grey and Designo cashmere white magno. The exterior get black chrome highlights on the side skirts, front splitter, grille inlets, front splitter, diffuser and tailpipes. The AMG forged wheels are finished in black chrome.

Inside, Edition 50 models get silver pearl and black nappa leather with grey stitching, an AMG Performance steering wheel wrapped in Dinamica microfibre and sporting Edition lettering and centre strip in silver pearl stitching.

As standard, Edition 50s are equipped with the AMG Interior Night Package that adds more black trim to the cabin and contrasting silver seatbelts. There are also 'Edition 50' emblems on the headrests.

More potent AMG GT and GT S

For 2017, AMG has ramped up the performance of its GT and GT S models with engine upgrades and standard active aerodynamics.

The GT now produces 475hp, 14hp more than before, and 630Nm of torque – an increase of about 30Nm. The GT S sees an increase in peak power by 12hp to 522hp and torque by around 20Nm to 670Nm. Despite the improvements, the 0-100kph times and top speeds of both models remain the same.