The Mercedes AMG GT is a new Porsche 911-rivalling sports car carrying the three-pointed star. It won’t get the fancy upwards opening gullwing doors of the SLS AMG but will get a design inspired by that car, featuring a long bonnet and cab-back profile.
We’re expecting it to use a chopped down version of the same chassis used in the SLS, which will help to cut costs. We’ve seen spy shots of the AMG GT, confirming how it’ll look and also revealing a set of narrow LED tail lights. So far we’ve only seen shots of the coupe version and our sources have suggested that no roadster variant is being developed for the time being.
We're expecting to see the AMG GT launched late in 2014, following a full reveal at the Paris Motor Show in October.
The curvaceous AMG GT will use similar proportions to the SLS AMG, but be pitched at a much lower price point of around £120,000 when it arrives in showrooms towards the end of this year.
We already have a good idea of the car’s silhouette from our spy pictures of the car, but two official sketches depict a Porsche 911-style rear that flows seamlessly from the highest point of the roof into the curve of the boot lid.
Long, horizontal taillights, an upswept crease along the flanks and long bonnet stretching out in front of the driver can all be seen.
Wraparound horizontal taillights and Mercedes’ trademark front end are also partially visible in a second teaser, further suggesting the SLS replacement will echo the S63 AMG Coupe’s styling.
By brightening the image as we have here (below), it's possible to make out the air vents and wheel design, as well as the new Mercedes' bulging flanks and upswept crease marking out the lower side panel.
The luxurious cabin clearly takes some inspiration from the S-Class, with a tablet-style display, a bank of classy air-vents in the dash and a powerful Burmester stereo visible in the doors – but there are some great sporty touches that make it worthy of the huge AMG badge embossed on the leather armrest.
Figure-hugging sports seats and an Alcantara trimmed flat-bottomed steering wheel both set the racy tone, and the wide centre console has four banks of individual switches for adjusting the suspension, ESP, sports exhausts and gearbox settings - and there is an enticing dial with ‘race’ written on it too.
Two-tone leather across the dash and doors completes the racy look, and there's real carbon fibre on the gear surrounds, vents and door panels as well. Just above the metal gear selector is a touch pad control and track wheel for the infotainment system, which made its debut on the new C-Class.
The centre console is designed to mimic a V8's two banks of cylinders, while the switches for the sat-nav and heating controls are, unusually, placed in the roof lining above the driver's head.
Powering the Stuttgart-based manufacturer’s SLS AMG replacement will be a new 4.0-litre V8 bi-turbo engine that produces 503bhp and 650Nm of torque.
This peak power is available at 6,250prm, while assessing maximum torque requires as little as 1,750rpm and can be maintained right up to 4,750rpm. AMG insiders have previously revealed the engine has the potential to develop even more power, but have so far refused to be drawn on just how far they plan to take it.
Mercedes is yet to confirm basic performance figures for the AMG GT either, although we now know the EU6 emissions standard-compliant eight-cylinder unit can manage up to 28.8mpg – a 7.4mpg improvement over the outgoing 6.3-litre naturally aspirated V8.
Built by Mercedes’ AMG performance arm according to the “one man, one engine” principal, the new smaller capacity V8 weighs in at a minimum of 209kg and benefits from two turbochargers housed in a compact ‘hot inside V’ formation.
As the name suggests, the turbos are not mounted on the outside of the cylinder banks as is conventional, but are actually housed inside the banked V layout, resulting in better weight distribution between the front and rear axles. This apparently also serves to improve cooling, and means the engine can be placed lower to the ground, reducing the car’s centre of gravity.
Dry sump lubrication sees the engine drop a further 55mm, and combines with forged aluminium crankcase and pistons to further reduce weight and improve emissions. A low-friction piston ring package further reduces fuel and oil consumption.
Elsewhere, there are zirconium alloy cylinder heads, offering improved heat resistance, and the engine sits on active mounts, which monitor its position and adjust it accordingly to avoid upsetting the balance of the car. Rounding off the efficiency-minded features is an ECO stop-start function and alternator management system.
The all-new GT sports car will come with a fully variable exhaust system, too, allowing the driver to vary engine sound depending on mood and circumstance. Exhaust flaps either side of the rear silencer activate progressively depending on transmission mode, engine speed and power requirements. Lower down the rev range these remain closed, causing exhaust gases to flow through additional damping to mute the engine sound. Accelerating will progressively open the flaps until both allow the V8’s full grunt to escape unrestricted.