Mercedes-Benz GLS review

All GLSs are AMG Line, meaning wheels start at 22-inches across (yes, 22s. As standard). Prices start at £74,075 for the AMG Line Premium - the entry-level model - which gets pretty much everything you could ever want or need in your big Mercedes SUV. Stuff like the full-fat MBUX infotainment system, a posh Burmester stereo, heated seats in the front and back, a whopping-great panoramic sunroof and a handy 360-degree parking camera.

Then comes the £79,325 AMG Line Premium Plus. It adds augmented reality nav (like you get in the A-Class), cooled, massage seats and so-on.

It’s a bigger step-up to the top-level, the AMG Line Premium Plus Executive. The £87,575 model gets rear-seat entertainment (featuring a centre armrest with an Android tablet and wireless phone charging), a massage function for the second-row of seats and a heated third-row, electric sun blinds for the side windows and fancy leather. Oh and 23-inch wheels.

You can’t spend too much on options, either, as everything is grouped into packs. Well we say ‘packs’... there’s just one, the Off-Road Package, which gives a low-range mode for the transmission, hill-descent control, off-road drive modes and more for £1,495.

Every GLS gets loads of safety tech - too much to list here, but it’s all latest-gen Merc tech’ and therefore very clever and very comprehensive.

As for costs to actually run a GLS - it won’t be cheap. Your first year’s tax, for example, will cost £1,815. Mercedes claims 32.8mpg, which isn’t bad for such big car. The tank is massive so expect a vast cruising range, but fill-ups to cost comfortably over £100 as a consequence.