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Mercedes-Benz unveils its revamped G-Class

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The all-new G-Class makes its public debut at the Detroit auto show in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.


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Mercedes reveals S 63 AMG details

Mercedes-AMG has revealed details of the new S 63 AMG ahead of its official unveiling at the Frankfurt International Motor Show in September.
The high-performance luxury sedan features an AMG-built 5.5-liter V8 biturbo engine (M 157) – the most powerful member of the BlueDIRECT engine family – and produces a maximum output of 593ps and torque of 900Nm. The S 63 AMG also boasts a power-to-weight ratio of 3.49kg/hp, resulting in acceleration from 0 to 100km/h in 4.0 to 4.4 seconds, depending on model variant, and an electronically limited top speed of 250km/h.
Technical highlights of the AMG 5.5-litre V8 biturbo engine include a direct petrol injection with piezo injectors; biturbocharging; an all-aluminum crankcase; four valves per cylinder with camshaft adjustment; air-to-water intercooler; efficient cooling of engine oil, engine water and transmission oil; lightweight composite oil pan; alternator management, and eco start/stop function.
Tobias Moers, head of overall vehicle development and board member of Mercedes-AMG, said: "We have unquestionably achieved our aim of making the new S 63 AMG more powerful, lightweight and efficient than its predecessor. In terms of driving dynamics as well, the S 63 AMG has made giant leaps forward."
Due to the vehicle’s systematic lightweight construction, the S63 AMG is up to 100kg lighter than its predecessor, resulting in an NEDC combined fuel consumption of 27.4–27.9mpg (237 to 242 g/km CO2), even though the engine output has been increased by up to 41ps compared to the previous model. The eight-cylinder model already meets the requirements of the EU6 emissions standard.
Following the SLS AMG Coupé Black Series, the S 63 AMG is the second AMG high-performance model to replace the conventional starter with a lithium-ion battery. With a capacity of 78Ah, the lithium-ion battery also replaces the backup battery – resulting in a weight saving of over 20kg. The S 63 AMG is the world's first volume produced vehicle with this type of battery concept.
The car also features the AMG Speedshift MCT seven-speed sports transmission, with three transmission modes – controlled efficiency, sport and manual. In controlled efficiency mode the eco start/stop function is active and shuts off the eight-cylinder engine when the car is at a standstill. In this mode the car generally starts in second gear. In sport and manual modes the engine and transmission are said to be significantly more agile and the eco start/stop function is deactivated.

18 July 2013


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