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

Corsa Electric

2021 Vauxhall

Corsa Electric

14,104 milesAutomaticElectric

Cash £11,497
View Corsa Electric
XCeed

2020 Kia

XCeed

60,351 milesManualPetrol1.4L

Cash £12,197
View XCeed
Corolla Touring Sports

2026 Toyota

Corolla Touring Sports

21,517 milesAutomaticPetrol1.8L

Cash £21,976
View Corolla Touring Sports
V60

2022 Volvo

V60

60,668 milesAutomaticPetrol2.0L

Cash £19,697
View V60

•  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

Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £6,189 off RRP*Used from £12,295
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £4,644 off RRP*Used from £9,295
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £6,037 off RRP*Used from £10,577
MG MG4

MG MG4

RRP £27,005Avg. savings £9,350 off RRP*Used from £9,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Tesla has dropped its Standards: entry-level Model Y and Model 3 renamed
Tesla Model Y - front 3/4

Tesla has dropped its Standards: entry-level Model Y and Model 3 renamed

Just a few months after Tesla introduced the Standard name for its more basic models, it’s been dropped
News
6 Feb 2026
Vauxhall, Citroen, Fiat and Peugeot fire risk: Over 390 models recalled amid fuel leak fears
Vauxhall Frontera Hybrid - dynamic front 3/4

Vauxhall, Citroen, Fiat and Peugeot fire risk: Over 390 models recalled amid fuel leak fears

392 more Stellantis cars have been recalled in the UK due to a faulty high-pressure fuel pipe which is thought could lead to fires
News
6 Feb 2026
Five new Hyundais on the way: Kona, Bayon, Tucson, i20 and Ioniq 3 to reinvent brand’s range
2026 Hyundai Bayon - front

Five new Hyundais on the way: Kona, Bayon, Tucson, i20 and Ioniq 3 to reinvent brand’s range

New Tucson, i20 and Bayon – and Ioniq 3 EV – coming in an 18-month product onslaught
News
5 Feb 2026