Mercedes-Benz GLS GLS 400d 4Matic AMG Line Premium + 5dr 9G-Tronic Review

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Manufacturer price from:£83,825
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2020 Mercedes GLS front cornering

The GLS is as luxurious and well equipped as you’d expect Mercedes’ flagship SUV to be. However, the rival BMW X7 is more practical and better to drive.

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Trim: AMG Line

As you’d expect given the GLS’s high starting price, even the entry-level trim is well equipped: keyless entry and start, heated and electrically adjustable leather seats, 22in alloy wheels and air suspension are all included, as are a head-up display and a high-end Burmester stereo.

Engine: GLS 400d 4Matic

Right now, this is the only engine on offer in the GLS: a 3.0-litre six-cylinder diesel that produces 325bhp. It’s impressively smooth and strong, and mostly works well with the standard nine-speed automatic gearbox. However, its average fuel economy of 35.8mpg is surpassed by most rivals.

Key information

0-62 MPH6.3 seconds
Fuel TypeDiesel
MPGOfficial overall fuel economy figure


Urban: 28.3Motorway: 40.4
Boot CapacityHow much space is there?



EmissionsOfficial emissions rating