Mercedes has released the first official photos of the new Mercedes S63 AMG.

Powered by a 5.5-litre biturbo V8 kicking out 585hp and 900Nm of torque, the new model is up to 100kg lighter than its predecessor, thanks to a lightweight lithium-ion battery, lighter alloy wheels and a new composite braking system.

The 0-62mph sprint now takes just 4.0 seconds (4.4 seconds for models without 4Matic four-wheel drive), and top speed is an electronically-limited 155mph.

The new model meets the EU6 emissions standard which is set to come into force in 2015, and can return 27.9 mpg if driven carefully.  CO2 emissions are between 237 g/km and 242 g/km depending on model.

The S63 AMG features an exhaust system with electronically-controlled flaps in both rear silencers.  With the transmission in Controlled Efficiency (C) mode, the flaps are closed most of the time and the exhaust note is muffled.  However, engaging Sport (S) or Manual (M) modes opens the flaps earlier through the rev range, revealing the V8’s rumble in all its glory.

As is customary with high-performing AMG models, the engine is hand-built by one person, with the engine badge bearing the fitter’s name and signature.

In place of a conventional battery, the S63 AMG instead carries a lithium-ion unit.  This results in a weight saving of over 20kg, and the new battery is also more resilient to cold temperatures.

The engine’s power is transferred to the road via a seven-speed AMG SpeedShift transmission.  A start/stop function operates when the transmission is in C mode, but is disabled in both S and M modes.

Curve Dynamic Assist is fitted as standard, and briefly applies the brakes to the inside rear wheel during cornering to ensure stability at high speeds and help reduce understeer.

Rear-wheel drive models also feature Mercedes’ Magic Body Control system that scans the road’s surface with a stereo camera set-up and adjusts the suspension before surface imperfections arrive at the wheels.

Steering is electro-mechanical with a variable ratio and Sport or Comfort assistance levels.

A ceramic composite braking system makes its debut as an option on the S63, in the shape of 420mm front discs leading to a 20% reduction in unsprung weight, greater fade resistance, and a longer life.

Visually, the AMG model wears a revised front bumper with gloss-black grilles, V8 Biturbo badging, rear diffuser with sports exhaust, and 19-inch forged light alloy wheels as standard with 20-inch versions as an option.

Inside, there are new AMG-badged sports seats, AMG steering wheel, an IWC-inspired clock, and AMG branding on the various colour displays.

The Mercedes S63 AMG will arrive in the UK in late 2013.  Pricing and exact specification has yet to be confirmed.

S 63 AMG
Short wheelbase
S 63 AMG
Long wheelbase*
S 63 AMG 4MATIC
Long wheelbase
Displacement5,461 cc5,461 cc5,461 cc
Output585 hp
at 5,500 rpm
585 hp
at 5,500 rpm
585 hp
at 5,500 rpm
Max. torque900 Nmat 2,250-3,750 rpm900 Nmat 2,250-3,750 rpm900 Nmat 2,250-3,750 rpm
Fuel consumptionNEDC combined27.9 mpg27.9 mpg27.4 mpg
CO2 emissions237 g/km237 g/km242 g/km
Kerb weight (according to EC)1,970 kg**2,045 kg***1,995 kg**2,070 kg***1,995 kg**2,070 kg***
Acceleration0-62 mph4.4 s4.4 s4.0 s
Top speed155 mph****155 mph****155 mph****

* Only available as right-hand drive;
** Ready-to-drive condition (Fuel tank filled 90%, without driver and luggage);
*** Kerb weight (fuel tank 90% full, with driver (68 kg) and luggage (7 kg));
**** Electronically limited