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BMW X4 vs Mercedes GLS comparison

Compare performance (510 HP vs 634 HP), boot space and price (51,900 £ vs 191,300 £ ) at a glance. Find out which car is the better choice for you – BMW X4 or Mercedes GLS?

BMW X4 vs Mercedes GLS: Key differences

BMW X4

  • clearly cheaper
  • clearly more efficient
  • a bit quicker 0–100 km/h
  • considerably lighter
  • noticeably more trunk space
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Mercedes GLS

  • somewhat more power
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By Achim Sedelmaier

Here’s where it gets real: The technical differences in detail

X4

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

BMW X4 is clearly cheaper – starting at 51,900 £ , while the Mercedes GLS costs 191,300 £ . That’s a price difference of around 139,403 £.

Fuel consumption also shows a difference: the BMW X4 uses 6 L/100km and is clearly more efficient than the Mercedes GLS with 13.3 L/100km. The difference is about 7.3 L/100km.

GLS

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Mercedes GLS offers somewhat more power – delivering 634 HP compared to 510 HP. That’s roughly 124 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW X4 is a bit quicker – completing the sprint in 3.8 s, while the Mercedes GLS takes 4.2 s. That’s about 0.4 s quicker.

There’s also a difference in torque: the Mercedes GLS delivers moderately more torque with 850 Nm compared to 700 Nm. That’s about 150 Nm more.

X4

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: Mercedes GLS offers more seats – 7 vs 5.

In terms of curb weight, BMW X4 is considerably lighter – 1,875 kg compared to 2,700 kg. The difference is around 825 kg.

Looking at boot space, the BMW X4 offers noticeably more boot space – 525 L compared to 355 L. That’s a difference of about 170 L.

When it comes to payload, the Mercedes GLS carries markedly more – 695 kg compared to 545 kg. That’s a difference of about 150 kg.

Who wins the race in the data check?

The BMW X4 is clearly superior overall in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £51,900
X4

BMW X4

  • Engine Type : Petrol MHEV, Diesel MHEV, Petrol
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 184 - 510 HP
  • Consumption L/100km : 6 - 10.7 L/100km
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Mercedes GLS

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW X4

The BMW X4 blends coupe-like styling with SUV practicality, giving you a striking profile that never lets you disappear into traffic. It feels planted and keen behind the wheel, and for buyers who crave personality without sacrificing everyday usability, it’s a compelling and slightly mischievous choice.

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Reviews BMW X4

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Mercedes GLS

The GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.

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BMW X4
Mercedes GLS

Costs and Consumption
Price
51,900 - 93,000 £
Price
191,300 £
Consumption L/100km
6 - 10.7 L/100km
Consumption L/100km
13.3 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
156 - 244 g/km
co2
302 g/km
Fuel tank capacity
65 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
7
Doors
5
Doors
-
Curb weight
1,875 - 2,095 kg
Curb weight
2,700 kg
Trunk capacity
525 L
Trunk capacity
355 L
Length
4,751 - 4,754 mm
Length
-
Width
1,918 - 1,938 mm
Width
1,956 mm
Height
1,620 - 1,621 mm
Height
-
Max trunk capacity
1,430 L
Max trunk capacity
-
Payload
415 - 545 kg
Payload
695 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Petrol
Engine Type
Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
184 - 510 HP
Power HP
634 HP
Acceleration 0-100km/h
3.8 - 8.4 s
Acceleration 0-100km/h
4.2 s
Max Speed
213 - 250 km/h
Max Speed
-
Torque
300 - 700 Nm
Torque
850 Nm
Number of Cylinders
4 - 6
Number of Cylinders
8
Power kW
135 - 375 kW
Power kW
466 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
3,982 cm3

General
Model Year
2,023 - 2,024
Model Year
2025
CO2 Efficiency Class
F, G
CO2 Efficiency Class
G
Brand
BMW
Brand
Mercedes-Benz
Is the BMW X4 offered with different drivetrains?

The BMW X4 is available as All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.