Mercedes-AMG has lifted the already potent performance potential of the G63 to new heights with the introduction of a strong re-designed 2018 model that is capable of accelerating to 62mph in just 4.5 seconds and reach a top speed of 149 mph.
Set to make its public debut next month at the Geneva motor show, before the start of sales for the UNITED kingdom in the month of June, the G63 aims to build on much of the unique qualities of its boxy predecessor, with the adoption of a modern aluminum body shell and extended the ladder frame of the chassis. They provide the new model with the addition of a 210 mm width, and what Mercedes-AMG describes as a greater comfort and stability.
Further developments to the range-topping G-Class model includes a new V8 engine and nine-speed transmissions. They are combined with a newly developed AMG Performance 4Matic all-wheel drive system, providing a more unbalanced back the supply of electricity, and reworked suspension. Together, they are required to provide the G63 with straight-line performance to accelerate the Range Rover Sport SVR, even if not beat its top speed.
Power for the new 2018 model year G63 is the AMG M178 engine, which is used throughout the Mercedes-Benz performance car division’s range. The 4.0-litre V8 petrol unit, the sites that its two twin-scroll turbochargers inside the cylinder banks to provide compact packaging and optimum thermal properties, it replaces the old twin-turbocharged 5.5-liter V8 engine used by the old G63, the M157, as it is the code name internally.
The power is increased by 14bhp to 577bhp at 6000rpm, while the torque extends from Â£ 66 ft to a stout 626lb ft between 2500 and 3500rpm.
The increased reserves are channelled through a nine-speed AMG Speedshift TCT automatic transmission and an AMG Performance 4Matic all-wheel drive system which apportions drive in a 40:60 front-to-rear split 50:50 front and rear-split of the previous G63.
Despite an empty weight of 2485kg, Mercedes-AMG says that the new G63 accelerates to 62mph approximately 0.9 sec inside the time quoted for its predecessor, at just 4.5 sec. Nominal maximum speed is increased from 6 mph limited to 137mph. However, buyers can also specify a so-called driver’s package, which includes upgraded wheels and tires and a limited 149 mph top speed.
In comparison, the 543bhp supercharged 4.0-litre V8-powered Range Rover Sport SVR hits 62mph from standstill in a claimed 4.7 sec and reach a top speed of 162mph.
As well as the improvement of performance, the new engine is claimed to provide the new G63 is added to an economy combined cycle figure of 21.4 mpg and average CO2 emissions of 299g/km on the European test cycle. The older model boasted a claimed 20.5 mpg and 322g/km.
The new range topping G-Class model is accompanied by a heavily reworked suspension that differs radically from that used by his predecessor. It uses a new double wishbone design at the front and a revised multi-link arrangement with rear spring travel 82mm under compression and 142mm to bounce with a height from the ground to 241mm for the rear axle.
The Standard equipment includes the AMG Ride Control set-up with adaptive damping and three different damping modes: Comfort, Sport and Sport Plus.
Setting of the 2018-model-year G63 apart visually from the new G500 has revealed at the Detroit motor show last month are typical AMG design cues, including a unique grid with 12 vertical elements and a deeper front bumper with a matte silver kick plate.
As with the G500, standard LED headlamps can be upgraded with the optional Multibeam unit with 84 individual LED modules and the Mercedes Adaptive highbeam assist function.
There is the “V8 Biturbo”, allowing the inside of the front wings, widened wheel arches, red-painted brake calipers, standard-fit 21cm wheels, running a board of directors, and, in a continuation of the set-up used by his predecessor, side mounted exhaust pipes that exit under the rear door.
The rear end receives an AMG special bumpers with the same matt silver elements to the front along with a stainless steel cover for the spare wheel and ‘G63 AMG badge.
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Among the exterior options is an AMG Night package with dark-tint headlights, tail lights, indicator lenses, rear window and rear side windows.
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Located in a similar 20mm increase in width as the G500, the interior of the new G63 offers an addition of 150 mm of legroom to the rear as its predecessor.
Housed in a new design of dashboard Mercedes-Benz Widescreen cockpit. With analog instruments, but can be ordered with digital tools in combination with a 12.3 in display infotainment system. The new AMG model also receives redesigned front seats and a new rear bench that can be folded down to extend the boot volume.
As is now the tradition at AMG, the new G63 will be launched with a limited volume of the “Edition 1” model which comes with a range of exclusive exterior colours, side stripes and black 22in forged aluminum wheels along with an updated interior with sport seats in black and red leather, carbon fibre trim element and a flat bottom AMG Performance steering wheel.
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