Mercedes GLS review

Category: Luxury SUV

Section: Introduction

Mercedes GLS 2021 front tracking
  • Mercedes GLS 2021 front tracking
  • Mercedes GLS 2021 rear tracking
  • 2021 Mercedes GLS dashboard
  • 2021 Mercedes GLS third row seats
  • Mercedes GLS 2021 instruments detail
  • 2021 Mercedes GLS infotainment screen
  • 2021 Mercedes GLS infotainment touchpad
  • 2021 Mercedes GLS front seats
  • 2021 Mercedes GLS second-row seats
  • 2021 Mercedes GLS boot
  • Mercedes GLS 2021 left panning
  • Mercedes GLS 2021 left panning
  • Mercedes GLS 2021 front tracking
  • Mercedes GLS 2021 rear tracking
  • 2021 Mercedes GLS dashboard
  • 2021 Mercedes GLS third row seats
  • Mercedes GLS 2021 instruments detail
  • 2021 Mercedes GLS infotainment screen
  • 2021 Mercedes GLS infotainment touchpad
  • 2021 Mercedes GLS front seats
  • 2021 Mercedes GLS second-row seats
  • 2021 Mercedes GLS boot
  • Mercedes GLS 2021 left panning
  • Mercedes GLS 2021 left panning
What Car?’s GLS deals
New car deals
Target Price from £85,800
or from £1,058pm
Swipe to see used and leasing deals

Introduction

What Car? says...

There are big cars, there are really big cars, and then there’s the Mercedes GLS. This 5.2-metre long, 2.0-metre wide behemoth is designed to seat seven people in comfort and is the flagship of Mercedes’ extensive SUV range – think of it as an S Class SUV, if you will. 

As far as rivals are concerned, the GLS is closest in concept to the 5.1-metre long BMW X7. However, as a prospective buyer, you might also want to consider (slightly) smaller seven-seaters such as the Audi Q7, Land Rover Discovery and Volvo XC90, or if you only need five seats, the full-fat Range Rover

You can even specify your GLS with an off-road package if you want to venture off the beaten path – although, let’s face it, cars of this type are rarely asked to tackle more than a slippery National Trust car park. 

In this review, we’ll look at everything from what the Mercedes GLS is like to drive, to how practical it is compared with rivals and how much it will cost you to run. Or, alternatively, to see how much we can save you on a new GLS, check out the deals available through our New Car Buying service.

At a glance
New car deals
Target Price from £85,800
or from £1,058pm
Swipe to see used and leasing deals
RRP price range £85,800 - £173,005
Number of trims (see all)4
Number of engines (see all)3
Available fuel types (which is best for you?)petrol, diesel
MPG range across all versions 21.1 - 32.1
Available doors options 5
Warranty 3 years / No mileage cap
Company car tax at 20% (min/max) £6,196 / £12,624
Company car tax at 40% (min/max) £12,392 / £25,248
Available colours