Mercedes-Benz Gls450 vs BMW X6

What's the difference?

The ‘Upper Large SUV over $120K’ segment of the Aussie new-car market is what you might call the top end of town, not only in terms of the extravagant models available but also their purchase prices, which stretch well into six figures and require monthly lease payments that rival home mortgages.

It’s where you’ll find some of the most prestigious marques in the automotive world including Rolls-Royce, Aston Martin, Bentley, Ferrari, Lamborghini, Range Rover, Lexus and BMW. And, of course, Mercedes-Benz with its big GLS which represents the flagship of the German manufacturer’s SUV fleet.

It was given a refresh in 2023 with cosmetic and multimedia upgrades along with powertrain enhancements, but there have only been minor changes since then. We were recently entrusted with the keys to the latest GLS to see if the ‘S-Class of SUVs’ leaves any room for improvement.

First launched in 2008, the BMW X6 created history (and a new car category) with its coupe styling on an SUV framework.

It was a polarising effort but one that opened up the SUV market for those wanting the size and presence of an SUV without compromising on the sporty styling of a smaller car.

The 2024 X6 has had a facelift and that brings a more athletic and robust kerb-side appeal that might swing a few fence sitters onto the side of liking it.

The already pleasant interior has been polished with extra customisations available on trims and accents. The technology has seen the biggest upgrade and it now features a more streamlined mild-hybrid component to the engine. It all positions the X6 well and truly within the rank of luxury.

For the last week I’ve been driving the mid-spec xDrive40i M Sport variant to see how the facelifted model holds its own against rivals, the Audi Q8 55 TFSI Dynamic Black and Mercedes-Benz GLE450 4Matic Coupe.