Mercedes-AMG has introduced an additional model to the AMG GT line up of roadsters, the AMG GT S, to sit between the AMG GT Roadster and the most powerful AMG GT C Roadster.

All three are powered by a 4.0-litre twin turbo V8, combined with a 7G AMG Speedshift dual clutch transmission. The GT makes 476 hp/630Nm, the GT S makes 522 hp/670Nm and 557hp/680Nm is delivered in the AMG GT C.Unsurprising the GT C is the quickest to 100 km/h from standstill, needing just 3.7 seconds (3.8 in the GT S and 4.0 in the GT). Top speed in the GT C is 316 km/h – probably best experienced with the roof up.

The AMG GT rides on standard AMG sport suspension while the more exclusive GT S and range-topping GT C, is fitted with AMG Ride Control sports suspension with Adaptive Damping System. Three damping modes are available – Comfort, Sport and Sport+.Among the drive modes are Comfort, Sport, Sport Plus, RACE and Individual. Push the “M” button in the centre console and the manual transmission mode will be activated.

The GT S and GT C are equipped with electronically-controlled locking differential at the rear axle to not only improve the traction of the drive wheels but to also increase cornering speed. As a result they’re able to accelerate out of corners earlier and with more potency thanks to the improved traction.Putting the leash on the AMG GT S and GT C are the 390 mm brake discs in the front with 6-pot calipers and 360 mm discs with single-pot calipers at the back. Carbon ceramic rotors are available as optional upgrades.

In the GT, 19-inch 10-spoke light alloy wheels are standard while the GT S and GT C gets a 19-inch pair in the front and 20-inch at the rear. Elsewhere on the exterior, the AMG GT is sheltered with a three-layered fabric soft top supported by a structure made of the magnesium, steel and aluminium combination.Elsewhere, the AIRPANEL active air management system is technical highlight. Vertical louvres at the bottom of the front apron are opened and closed electronically within a second for optimum cooling. At normal speeds the louvres are closed for reduced drag and the air is directed at the underbody.

Another aerodynamic enhancement worth noting is the extendable rear spoiler that reduces lift at the rear axle at higher speeds.As standard the AMG GT S Roadster comes with the AMG Silver Chrome Interior package with the centre console surround, air vent bezels and trim strips in the door armrests in silver chrome.