Firebrand AMG flavour is, for now, the only one in which the G-Class comes in the UK. It's as absurd as ever, but now much better-mannered and more luxurious with it In a market in which there seems to be another six-figure ‘super-SUV’ coming along every other week, with everyone from Aston Martin to Rolls-Royce gearing up to launch one, what future is there for the pumped-up, AMG-engined Mercedes Gelandewagen? Will anyone be willing to part with upwards of £140,000 for this boxy throwback, you might wonder. If you’re looking for luxury, capability, convenience and conferred status from an exotic SUV, you could have a Bentley Bentayga for the same money, a Range Rover Sport SVR for a lot less or a Lamborghini Urus for not much more.Well, you might wonder. For a while, at least — until the new G63 rolls into the car park in which you’ve been waiting, side-exit exhausts burbling hilariously and brooding with enough visual charisma and Tonka toy menace that it could have be...