Merc has revealed details of its revised G-Class - that ageing, iconic off-roader - and the sad headline news is that the UK will have to survive without the twin-turbocharged 6.0-litre V12 version, which uses the same 621bhp engine found in the new SL65. However, the UK will receive the new G63 AMG, a V8 monster featuring the company\'s new twin-turbo 5.5-litre V8 currently being rolled out across the AMG range. That means 544bhp - 37bhp more than the old G55 - and 560 torques. No word on performance, but a 0-62mph time somewhere in the low fives would be a good guess. Also available on launch is the G350 BlueTEC - a 3.0-litre V6 diesel with 211bhp and 400lb ft of torque, capable of returning 25.2mpg and 295g/km of CO2, if that sort of thing excites you. Both engines will get the seven-speed 7G-Tronic auto ‘box as standard. Merc has fitted daytime LED running lights and new exterior mirrors for all models, while the AMGs get a new grille with double louvres, new bumpers, larger air intakes, 20in wheels and red brake calipers. The G-Class has also been treated to a host of interior upgrades, too. The centre console and instrument panel have been completely designed, and you\'ll find a new TFT display sandwiched between the two dials. A further colour screen sits in the middle of the dash, incorporating a DVD player and the COMAND system, all standard on G-Class models, including a sat nav with \"off-road\" functions, presumably to inform you where the nearest molten lava lake is. Prices will be confirmed closer to its on sale date in autumn later this year, but for now, why not tell us how cool you reckon this new G is, below.