Mercedes-Benz has released the 2011 S63 AMG which now comes with the same new engine seen in the facelifted CL63 AMG coupe. We’re referring to the 5.5-litre biturbo V8 which comes with spray-guided direct petrol injection and piezo injectors.

In standard form the engine produces 544 hp and 800 Nm of torque, but the addition of the AMG performance package pushes this up to 571 hp and 900 Nm. The difference between the standard and AMG package is the increase in the maximum charge pressure from 1.0 to 1.3 bar. In addition, the engine cover comes in genuine carbon fibre.

The S63 now uses the AMG Speedshift MCT 7-speed sports transmission, which along with a new start stop system contributes to better fuel economy of 10.5 litres per 100km, which is 25% improved over the old naturally aspirated V8. Century mark acceleration takes just 4.5 seconds. Top speed is limited to 250 km/h (4.4 sec and 300 km/h for AMG Performance Package).

Inside the limo, the standard Passion leather upholstery has contrasting colour stitching, while optional equipment such as a Bang & Olufsen BeoSound sound system with 1200 watts and 15 speakers, acoustic lens tweeters in the A and B pillars and a new AMG instrument cluster, are available on request. Safety equipment includes Active Lane Keeping Assist, Active Blind Spot Assist, Crosswind stabilisation, Torque Vectoring Brakes and Direct-Steer system.

This fast S sits on AMG triple-spoke light alloys fitted with 255/40 or 275/40 R19 tyres. AMG Performance Package adds AMG double-spoke forged 20-inch wheels, AMG Performance steering wheel with Alcantara inserts, and AMG trim in black piano lacquer/carbon fibre.

The S63 AMG will be offered in both short and a long wheelbase versions, and its market launch is expected at the end of September. Hi res gallery after the jump.

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