OFFROAD Mercedes-Benz G 500 4x4² Concept 2015 aro 22 4.0 V8 Biturbo 422 cv

(from Mercedes-Benz Press Release) Only a G-Class can be better than a G-Class. This is the credo followed by the developers with the Mercedes-Benz G63 AMG 6x6, and they are now stepping up a gear with the G500 4x4². The basic recipe for this overcomer of everything is simple: take the superior all-wheel-drive powertrain including portal axles from the 6x6 - take away one axle - and blend it all with a newly-developed variable chassis and the series-production G-Class body. A large pinch of V8 power with 310 kW (422 hp), a set of 22-inch 325/55 R 22-sized wheels, carbon-fibre body parts and then just gourmet ingredients from the seductive designo Exclusive range for the interior - and the 5-star menu for all off-road enthusiasts is ready.
A new addition to the extreme G-Class model family: the G63 AMG 6x6 has a model brother in the form of the G500 4x4². The near-series show car is a new highlight in the superlative-rich history of the G-Class and blends all the advantages of the model series. The series-production models of the G-Class supply the unshakeable foundations in the form of the body and ladder-type frame, which compensate for the considerably increased performance of the G500 4x4² without any problem and also without any type of reinforcements. The G63 AMG 6x6 donates an amended version of the ruggedly determined permanent all-wheel-drive powertrain with portal axles. The engine compartment houses a completely new V8 engine with a displacement of four litres, direct injection and biturbocharging. Also new is the chassis with dual spring/damper struts and adjustable damping. Finally, in the interior, the G500 4x4² occupants enjoy comfort and an ambience on a par with a luxury saloon.
New engine offers V8 biturbo power
The 4.0 litre V8 biturbo engine in the G500 4x4² stands out for its sublime power delivery, the targeted lightweight construction, as well as its high efficiency. The newly developed eight-cylinder features twin turbochargers which are not mounted on the outside of the cylinder banks but rather inside the V configuration - what is known as the 'hot inside V'. The advantages lie in the compact engine design, the optimum response and the low exhaust gas emissions. The piezo direct petrol injection used exclusively at Mercedes-Benz is responsible for the mixture formation. The spray-guided combustion process has been enhanced in the third generation to meet all future statutory requirements. In series production, the highly efficient and economical 4.0-litre V8 biturbo engine would meet the Euro 6 emission standard, including the maximum particulate emissions level that will not take effect until 2016.
The V8 crankcase consists of an aluminium alloy and ensures maximum strength with the lowest possible weight. The cylinder walls in NANOSLIDE® technology are twice as hard as conventional cast-iron cylinder liners, minimise the inner friction and thus the fuel required and facilitate maximum mileages. NANOSLIDE® was developed by Daimler starting in the year 2000 and has so far been used successfully and reliably in over 200,000 engines since 2006.
Twin sidepipes on both sides in front of the rear wheels modulate the G-typical sound of the G500 4x4² and master the entire repertoire of potent sports cars - from soft mumbling in neutral through sonorous humming in the partial-load range to emphatic booming when accelerating under full load. A welcome side effect of the sidepipes: there is improved off-road capability, because in the rear area there are none of the usual rear silencers, which could otherwise restrict the angle of departure.
Things are really looking up both on and off-road
In view of the key data for the chassis and powertrain it seems more than logical that the off-road world starts for the G500 4x4² where other vehicles capitulate. But it is surprising that the new "G" puts in an absolutely convincing performance on the asphalt. Due to the considerably wider track of the portal axles compared with the series-production car (+299 mm), the large 22-inch 325/55 R 22-sized wheels and the adjustable damping with its Sport mode, the enhanced G-Class drives through bends so dynamically that the occupants feel as though they are in a sports car rather than a cross-country vehicle. This also applies to tours on unsurfaced slopes or snow-bound roads, in which case the performance of a high-powered rally car kicks in.
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