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BMW XM vs Mercedes GLB comparison
Compare performance (748 HP vs 354 HP), boot space and price (116,100 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – BMW XM or Mercedes GLB?
BMW XM vs Mercedes GLB: Key differences
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
XM
Costs and Efficiency:
Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
Mercedes GLB is significantly cheaper – starting at 43,200 £ , while the BMW XM costs 116,100 £ . That’s a price difference of around 72,945 £.
Fuel consumption also shows a difference: the BMW XM uses 4.7 L/100km and is clearly more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 1 L/100km.
As for electric range, the Mercedes GLB offers clearly more range – reaching up to 631 km, about 551 km more than the BMW XM.
GLB
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 offers substantially more power – delivering 748 HP compared to 354 HP. That’s roughly 394 HP more horsepower.
When accelerating from 0 to 100 km/h, the BMW XM is clearly quicker – completing the sprint in 3.8 s, while the Mercedes GLB takes 5.5 s. That’s about 1.7 s quicker.
There’s also a difference in torque: the BMW XM delivers clearly more torque with 1,000 Nm compared to 515 Nm. That’s about 485 Nm more.
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.
Seats: BMW XM offers more seats – 7 vs 5.
In terms of curb weight, Mercedes GLB is significantly lighter – 1,840 kg compared to 2,695 kg. The difference is around 855 kg.
Looking at boot space, the Mercedes GLB offers very slightly more boot space – 540 L compared to 527 L. That’s a difference of about 13 L.
When it comes to payload, the BMW XM carries only slightly more – 525 kg compared to 505 kg. That’s a difference of about 20 kg.
Who wins the race in the data check?
The Mercedes GLB comes out modestly ahead 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 £43,200
Mercedes GLB
BMW XM
Mercedes GLB
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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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.
details
Mercedes GLB
The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.
details
BMW XM
Mercedes GLB
Costs and Consumption |
|
|---|---|
|
Price
116,100 - 159,300 £
|
Price
43,200 - 62,400 £
|
|
Consumption L/100km
4.7 - 5.3 L/100km
|
Consumption L/100km
5.7 - 6.1 L/100km
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
|
Electric Range
78 - 80 km
|
Electric Range
431 - 631 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
105 - 119 g/km
|
co2
0 - 138 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
SUV
|
Body Type
SUV
|
|
Seats
7
|
Seats
5
|
|
Doors
-
|
Doors
-
|
|
Curb weight
2,695 - 2,795 kg
|
Curb weight
1,840 - 2,280 kg
|
|
Trunk capacity
527 L
|
Trunk capacity
540 L
|
|
Length
-
|
Length
-
|
|
Width
2,005 mm
|
Width
1,861 mm
|
|
Height
-
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
505 - 525 kg
|
Payload
485 - 505 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Plugin Hybrid
|
Engine Type
Electric, Full Hybrid
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Automatic Gearbox
|
Transmission Detail
Reduction Gearbox
|
|
Drive Type
All-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
476 - 748 HP
|
Power HP
156 - 354 HP
|
|
Acceleration 0-100km/h
3.8 - 5.1 s
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
|
Max Speed
-
|
Max Speed
-
|
|
Torque
700 - 1,000 Nm
|
Torque
280 - 515 Nm
|
|
Number of Cylinders
6 - 8
|
Number of Cylinders
4
|
|
Power kW
350 - 550 kW
|
Power kW
115 - 260 kW
|
|
Engine capacity
2,998 - 4,395 cm3
|
Engine capacity
1,499 cm3
|
General |
|
|---|---|
|
Model Year
2026
|
Model Year
2026
|
|
CO2 Efficiency Class
C, D
|
CO2 Efficiency Class
A, D, E
|
|
Brand
BMW
|
Brand
Mercedes-Benz
|
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.