- Combustion principle: four-stroke petrol engine with two turbochargers and intercooler
- Exhaust-gas treatment: catalytic converter
- Arrangement: in front
- Installation direction: longitudinally
- Engine designation / type: M 157 DEH 55 LA / 157.981
- Number of cylinders / arrangement: 8 / 90° V
- Bore: 98.0 mm
- Stroke: 90.5 mm
- Displacement : 5461 cc
- Compression ratio: 10.0
- Rated power: 385 kW / 525 PS at 5250 - 5750 rpm; with optional equipment "AMG Performance Package": 410 kW / 557 PS at 5250 - 5750 rpm
- Nominal torque: 700 Nm at 1750 - 5000 rpm; with optional equipment "AMG Performance Package": 800 Nm at 2000 - 4500 rpm
- Number of valves per cylinder: 4
- Valve operation: 2 overhead camshafts per cylinder bank (variably adjustable)
- Camshaft drive: duplex roller chain
- Injection system (location): upstream of mixing system
- Injection pump / injection system (type): spray-guided gasoline direct injection with piezo-controlled injectors
- Injection pump (type): high-pressure pump
- Oil change quantity (with filter): 8.5 l
- On-board power supply voltage: 12 v
- Generator: three-phase AC / 2520 W
- Ignition system: direct coil ignition
- Fuel tank capacity/of which reserve: 66 / 14.0 l
- Fuel tank (location): above rear axle
- Front-wheel suspension (type): independent suspension
- Front axle: multi-link independent suspension
- Rear-wheel suspension (type): independent suspension
- Rear axle: multi-link independent suspension
- Suspension front / rear: shock absorber with coil spring, torsion bar stabilizer / air suspension, torsion bar stabilizer
- Steering (type): rack-and-pinion
- Steering assistance: electrically assisted, speed-dependent
- Brakes front: composite brake discs, internally ventilated and perforated
- Rear brakes: discs, externally ventilated and perforated
- Front brake caliper: fixed caliper
- Rear brake caliper: fixed caliper
- Disc or drum diameter front : 360 mm
- Disc or drum diameter rear: 360 mm
- Parking brake (actuation): mechanically, foot-operated parking brake (manual release)
- Front rims: 9 J x 18
- Rear rims: 9.5 J x 18
- Front tyres: 255/40 R18
- Rear tyres: 285/35 R18
- Drive: rear wheel drive
- Transmission: automatic
- Gearbox type designation: AMG SPEEDSHIFT MCT 7-speed sports transmission
- Availability: as standard
- Clutch: Multi-Clutch Technology with wet start-up clutch
- Gearbox design: epicyclic gear system
- Transmission control: electrohydraulic
- Forward gears (total): 7
- Gear ratio: I. 4.34; II. 2.89; III. 1.92; IV. 1.37; V. 1.00; VI. 0.82; VII. 0.73; R. 3.42
- Axle drive ratio: 2.65
- Maximum speed: 250 km/h (electronically limited); with optional equipment "AMG Driver's Package" (from approx. 07.2011): 300 km/h (electronically limited)
- Acceleration 0-100 kpm: 4.3 s; with optional equipment "AMG Performance Package Plus": 4.2 s
- Fuel consumption urban / extra-urban / combined (according to the respectively valid measurement and calculation methods): 13.8 / 7.5 / 9.8 l per 100 km (Super Plus)
- Wheelbase: 2874 mm
- Front track gauge: 1625 mm
- Rear track gauge: 1594 mm
- Vehicle length: 4883 mm
- Vehicle width: 1872 mm
- Vehicle height: 1440 mm
- cW drag coefficient: 0.29
- Turning circle diameter: 11.30 m
- Unladen weight (according to the respectively valid measurement or calculation methods): 1840 kg
- Permissible total weight: 2390 kg
- Permissible axle load front: 1195 kg
- Permissible axle load rear: 1240 kg
- Payload: 550 kg
- Units produced: not separately documented
- Prices: 07.2011: EUR 105,791.00
09.2012: EUR 105,791.00