What is it?
The Mercedes-AMG G63 is a lightly facelifted version of the earlier Mercedes-Benz G63 AMG. Along with the subtle alteration in name, the square-rigged off-roader receives a moderate hike in power, some mild chassis tweaks and a more luxurious interior.
It’s hardly a major upgrade, but Mercedes-Benz considers the changes sufficient enough to allow it hike the price from an already inflated £129,375 to £131,675. Choose the limited volume G63 463 Edition model driven here and the sticker rises to a faintly ridiculous £149,970.
While instantly recognisable as the military grade Gelandewagen in production for nearly four decades years now, the facelifted G63 is distinguished from its less powerful G350d and G500 siblings by its own unique front bumper, individual grille insert, wider wheel arch flares, running boards and, on the 463 Edition model, a stainless steel protection plate big 21in wheels shod with 295/40 profile Yokahama tyres.
While decidedly olde worlde in appearance, there’s nothing remotely old-fashioned about the engine. The twin-turbocharged 5.5-litre V8 unit first introduced to the G63 back in 2012 receives a new inlet manifold among other minor tweaks, raising power from a previous 537bhp to a new peak of 563bhp.
Owing to torque loading limitations with the seven-speed AMG SpeedShift automatic gearbox to which it is mated, though, the upgraded engine continues to kick out the same 561lb ft as before.
Despite the increased power, the 2550kg off-roader is no faster off the line or at the top end as its predecessor, with the 0-62mph time remaining at an official 5.4sec and top speed continuing to be limited to 130mph. Claimed fuel economy and average CO2 emissions also remain unchanged at an eco-challenging 20.5mpg and 322g/km.