Styling for the big Benz 4WD has barely changed since it made the transition from army vehicle to road-going model, and the German carmaker plans to keep it that way.
Speaking with US industry paper Automotive News Europe, Daimler CEO Dieter Zetsche reportedly said the G-Class will continue as-is for the foreseeable future.
"It has to continue as it looks today - it's not a vehicle that pretends, the G class is the original," Mr Zetsche said.
Sales of the G-Class hit 12,000 in 2013 (with around 20 percent sold in the US), and have tripled in the past five years.
Australia contributed just 40 to the 2013 tally, but could top that in 2014 with 36 units already sold to the end of September.
And the future looks bright for the G-Class, with the demise of its closest competitor in the Land Rover Defender predicted before the end of next year.
It could be a tough battle for sales before it departs however, with reports suggesting a send-off model from Jaguar Land Rover’s Special Operations is on the cards.
A replacement of some sort for the Defender is also predicted, but all JLR has revealed about it at present is that it won’t necessarily look like the DC100 concept from 2011.
So the G-Class could find itself with a naturally-growing customer base, as the last ‘true’ off-roader with styling to match.
As sales grow, pricing is unlikely to be ‘revised’ downward anytime soon with the model in Australia currently costing anywhere from $149,330 to $231,730; plus on-road costs.
Mercedes-Benz isn’t worried about future rivals from Bentley or Rolls-Royce that may be similarly-priced either, with G-Class boss Gunnar Guethenke saying "when it comes to the combination of off-road capabilities and luxury, there's no alternative".
The G-Class will be forced into some changes in 2016 however, as tougher European Union regulations governing pedestrian safety will require a rethink on design.
The German carmaker may use that opportunity to change the G-Class in other ways as well, including a lower roofline and wider body for greater interior space and improved on-road handling.
Mercedes-Benz recently celebrating the G-Class’s 35th birthday, with special edition versions of the G 350 BlueTEC and G 500 variants.