Skip advert
Advertisement

Mercedes GL450

Bigger really is better, according to Mercedes that's why it came up with this: the new seven-seat GL-Class

Overall Auto Express rating

4.0

How we review cars
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

Comfortable inside and imposing to look at, the GL-Class has the measure of its rivals when it comes to space. It's also a re-fined cruiser and not as ponderous around bends as you might think. The Merc is a truly capable machine - although navi-gating a narrow country lane or parking up in a cramped multi-storey will be a test of nerves.

Advertisement - Article continues below

Pitched at buyers who think regular 4x4s are a bit wimpy, the £55,000 GL450 is the largest and most luxurious mud-plugger Mercedes has ever built.

Inspired by the legendary G-Wagen, the newcomer is simply massive. But the imposing machine is not relying on size alone to attract customers, as it promises to offer luxury, practicality and real off-road ability, too.

Taking styling cues from the smaller M-Class, the GL is beefed up with boxy wheelarches and angular, squared-off lines. It's unlikely to win any beauty contests, but it certainly turns heads.

There's only one spec level to accompany each model, so standard kit is very generous, and includes folding leather seats, sat-nav and the firm's COMAND cabin control system. The dashboard and doors are beautifully trimmed and the driving environment is laid out in a logical and uncluttered way. Yet while the COMAND unit saves space, its num-erous settings can be confusing.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

RAV4 Hybrid

2024 Toyota

RAV4 Hybrid

49,913 milesAutomaticPetrol2.5L

Cash £23,299
View RAV4 Hybrid
Golf

2022 Volkswagen

Golf

49,148 milesManualDiesel2.0L

Cash £16,397
View Golf
HS

2022 MG

HS

47,886 milesAutomaticPetrol1.5L

Cash £15,497
View HS
3-Door Hatch

2022 MINI

3-Door Hatch

40,379 milesAutomaticPetrol1.5L

Cash £15,347
View 3-Door Hatch

It's the room on offer that impresses the most, however. Unlike many SUVs that claim to provide adequate seating for seven, the GL is a genuine people carrier. Two adults can be comfortable in the rearmost chairs, which is no surprise really, given that the Merc is 20cm longer than a Chrysler Voyager MPV. Push a button to lower the back row into the boot floor, and you're greeted by a huge luggage compartment.

As with other premium 4x4s, the Merc combines a civilised on-road ride with genuine mud-plugging ability. Only when tackling tighter bends at speed does the GL really begin to pitch and roll. Otherwise, it delivers a refined ride that belies its weight and size.

Straight-line pace is superb as well, thanks to a new 4.6-litre petrol V8 that offers 340bhp and a sensational 460Nm of torque. The 0-60mph sprint is taken care of in 7.6 seconds, while a 146mph top speed is equally impressive. Smooth progress is aided by the seven-speed auto, but the 2,600kg machine won't win any medals for economy.

On our test route, the car gobbled its fuel, despite claimed returns of around 28mpg. Still, in rough terrain, there's an arsenal of electronic gadgetry to keep the 4x4 going. A low-ratio gearbox, hill descent control, adaptive damping and air-suspension - which can raise ground clearance to nearly 300mm - ensure the GL-Class is brilliant off-road. But it's the newcomer's presence on tarmac that is sure to appeal to most buyers. There's no doubt the GL-Class will find an audience among 4x4 fans, who are unlikely to be put off by its sheer size.

Skip advert
Advertisement

New & used car deals

Volkswagen Polo

Volkswagen Polo

RRP £14,575Avg. savings £1,864 off RRP*Used from £7,850
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £7,568 off RRP*Used from £13,600
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £3,297 off RRP*
Kia Sportage

Kia Sportage

RRP £28,065Avg. savings £3,153 off RRP*Used from £15,600
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Car Deal of the Day: Savour the Scandi cool of a Polestar 4 at only £334 a month
Polestar 4 - cornering, low shot

Car Deal of the Day: Savour the Scandi cool of a Polestar 4 at only £334 a month

Fancy something smart and sophisticated? You won’t look back with the Polestar 4. It’s our Deal of the Day for September 13
News
13 Sep 2025
Skoda Enyaq vs Toyota bZ4X: which SUV is the perfect family EV?
Skoda Enyaq vs Toyota bZ4X - front tracking

Skoda Enyaq vs Toyota bZ4X: which SUV is the perfect family EV?

Things don’t stand still in the world of EVs, and Skoda’s Enyaq and Toyota’s bZ4X have both been updated. We put them to the test...
Car group tests
13 Sep 2025
New Geely EX5 SUV to arrive in October, starting at £32k
Geely EX5 - front

New Geely EX5 SUV to arrive in October, starting at £32k

This new electric SUV is coming soon to the UK from Volvo and Lotus parent company, Geely
News
15 Sep 2025