Skip advert
Advertisement

Mercedes GL63 AMG

We test out the enormous Mercedes GL63 AMG - but is it a tad out of place in the UK?

Find your Mercedes GL-Class
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

The GL63 is an American car that’s rather lost in translation in the UK. It’s enormous, a tad ungainly and will hose through fuel like there’s a big hole in its 100-litre fuel tank. However, there’s no denying its interior space is impressive and performance is suitably epic, although it should be given how much it’ll cost to buy and run.

Advertisement - Article continues below

If the new Range Rover is a little on the small side, and the Audi Q7’s still a bit pokey, then there’s only one car that’ll really fit the bill - the Mercedes GL-Class.

Mercedes’ gigantic GL is a full-size SUV in every sense of the word, particularly in the top-spec GL63 AMG spec tested here, given the blend of luxurious fittings, huge space and epic performance it offers.

•  Mercedes

There’s no missing the GL, as its 5,141mm-long body will be protruding well beyond the limits of most UK parking spaces. On most SUVs, side steps are purely for show, but even taller drivers will find this useful in the climb up to the front seat. It goes without saying that you sit up high, with a commanding view down the GL’s long bonnet.

•  Audi Q7 review

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Fabia

2018 Skoda

Fabia

30,259 milesManualPetrol1.0L

Cash £9,997
View Fabia
Jazz

2017 Honda

Jazz

43,781 milesManualPetrol1.3L

Cash £9,697
View Jazz
Mokka

2019 Vauxhall

Mokka

46,956 milesManualPetrol1.4L

Cash £9,497
View Mokka
Fiesta

2021 Ford

Fiesta

38,574 milesManualPetrol1.0L

Cash £8,997
View Fiesta

•  Range Rover review

The interior isn’t stylish – nothing about the GL is – but it is made of familiar high-grade plastics and leathers, and comes loaded with equipment that’s lifted from the flagship S-Class.

Press the starter button and the engine barks into life, accompanied by a bassy woofle emerging from the rear bumper – around four metres behind the driver. The engine is the familiar hand-finished 5.5-litre twin-turbo AMG V8. And despite the car’s weight, performance remains sharp.

Advertisement - Article continues below

The engine has to work hard, so makes plenty of noise – no bad thing in our opinion – but the GL is still a very fast car. It is less adept when it comes to corners. The traction control is quick to grab the brakes, like it is on the older G63, even if you turn the system off. That said, the GL is very easy to drive, the controls are light and the brakes do a good job of managing the car’s 2,580kg weight.

The GL doesn’t have a big following in the UK – it goes down better in the Middle East and the US where petrol prices are relatively low. And while the fact that the GL is almost two-metres wide makes negotiating traffic tricky, the advantage is that the GL features space for seven people and a decent amount of luggage.

The two rearmost seats are for children only, and will rise or lower into the boot floor individually at the touch of a button. The middle row seats also lower electronically, performing a neat forward roll to allow access to the back row of seats. However, they require old-fashioned muscle to get them back in place. Once reinstated, the middle row of seats has loads of head and leg space, and their own air conditioning vents.

Skip advert
Advertisement

New & used car deals

Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £3,565 off RRP*
Nissan Juke

Nissan Juke

RRP £19,805Avg. savings £4,765 off RRP*Used from £9,000
Volkswagen Polo

Volkswagen Polo

RRP £15,270Avg. savings £1,925 off RRP*Used from £6,777
MG MG4

MG MG4

RRP £27,005Avg. savings £6,250 off RRP*Used from £8,672
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

We got it wrong: VW ID.3 and ID.4 will be replaced by “true Volkswagens”
Volkswagen ID.3 - front and rear

We got it wrong: VW ID.3 and ID.4 will be replaced by “true Volkswagens”

The inside story on how the people’s car maker lost touch with the people, before rediscovering its mojo under boss Thomas Schäfer
News
10 Apr 2026
Car Deal of the Day: Tesla Model 3 for £197 a month is the ultimate high fuel price hack
Tesla Model 3 - front cornering

Car Deal of the Day: Tesla Model 3 for £197 a month is the ultimate high fuel price hack

Elon’s Musk’s big-seller is a premium-feeling and efficient electric saloon. It’s our Deal of the Day for April 10
News
10 Apr 2026
New cars cost too much but some brands are finally finding the price sweet spot
Opinion - new car prices, header image

New cars cost too much but some brands are finally finding the price sweet spot

New cars are expensive, but Mike Rutherford is pleased to see that some manufacturers have found a pricing sweet spot
Opinion
12 Apr 2026