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BMW XM vs Mercedes GLS - Differences and prices compared

Compare performance (748 HP vs 634 HP), boot space and price (116100 £ vs 96100 £ ) at a glance. Find out which car is the better choice for you – BMW XM or Mercedes GLS?

BMW XM

Mercedes GLS

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

XM

Costs and Efficiency:

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

Mercedes GLS has a distinct advantage in terms of price – it starts at 96100 £ , while the BMW XM costs 116100 £ . That’s a price difference of around 20022 £.

Fuel consumption also shows a difference: BMW XM manages with 4.70 L and is therefore convincingly more efficient than the Mercedes GLS with 7.80 L. The difference is about 3.10 L per 100 km.

GLS

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the BMW XM has a somewhat edge – offering 748 HP compared to 634 HP. That’s roughly 114 HP more horsepower.

In acceleration from 0 to 100 km/h, the BMW XM is slightly quicker – completing the sprint in 3.80 s, while the Mercedes GLS takes 4.20 s. That’s about 0.40 s faster.

There’s also a difference in torque: BMW XM pulls a bit stronger with 1000 Nm compared to 850 Nm. That’s about 150 Nm difference.

XM

Space and Everyday Use:

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

Both vehicles offer seating for 7 people.

In curb weight, Mercedes GLS is hardly perceptible lighter – 2550 kg compared to 2695 kg. The difference is around 145 kg.

In terms of boot space, the BMW XM offers distinct more room – 527 L compared to 355 L. That’s a difference of about 172 L.

When it comes to payload, Mercedes GLS noticeable takes the win – 695 kg compared to 525 kg. That’s a difference of about 170 kg.

Who wins the race in the data check?

The BMW XM is far ahead 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.

BMW XM
Mercedes GLS

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £116,100
XM

BMW XM

  • Engine Type : Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 476 - 748 HP
  • Consumption L/100km : 4.7 - 5.3 L
  • Electric Range : 78 - 80 km
details

BMW XM

The BMW XM is an unapologetically bold flagship that fuses brash, hyper-styled presence with the kind of luxury that commands attention wherever it goes. Inside it's a leather-clad showpiece loaded with modern tech and a driving personality that blends theatrical muscle with refined grand-tourer composure—ideal for buyers who want drama and comfort in equal measure.

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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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Reviews BMW XM

Reviews Mercedes GLS

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Costs and Consumption
Price
116100 - 159300 £
Price
96100 - 208500 £
Consumption L/100km
4.7 - 5.3 L
Consumption L/100km
7.8 - 13.7 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
78 - 80 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
105 - 119 g/km
co2
204 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
90 L

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
7
Seats
7
Doors
-
Doors
5
Curb weight
2695 - 2795 kg
Curb weight
2550 - 2825 kg
Trunk capacity
527 L
Trunk capacity
355 L
Length
-
Length
5208 - 5233 mm
Width
2005 mm
Width
1956 mm
Height
-
Height
1782 - 1838 mm
Max trunk capacity
-
Max trunk capacity
2400 L
Payload
505 - 525 kg
Payload
445 - 695 kg

Engine and Performance
Engine Type
Plugin Hybrid
Engine Type
Petrol MHEV, Diesel 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
476 - 748 HP
Power HP
333 - 634 HP
Acceleration 0-100km/h
3.8 - 5.1 s
Acceleration 0-100km/h
4.2 - 6.7 s
Max Speed
-
Max Speed
238 - 280 km/h
Torque
700 - 1000 Nm
Torque
500 - 850 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
350 - 550 kW
Power kW
245 - 466 kW
Engine capacity
2998 - 4395 cm3
Engine capacity
2989 - 3982 cm3

General
Model Year
2026
Model Year
2024 - 2025
CO2 Efficiency Class
C, D
CO2 Efficiency Class
G
Brand
BMW
Brand
Mercedes-Benz

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What drive types are available for the BMW XM?

The BMW XM is available as All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.