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BMW X4 vs Mercedes GLB comparison

Compare performance (510 HP vs 354 HP), boot space and price (51,900 £ vs 50,600 £ ) at a glance. Find out which car is the better choice for you – BMW X4 or Mercedes GLB?

BMW X4 vs Mercedes GLB: Key differences

BMW X4

  • clearly more power
  • considerably quicker 0–100 km/h
  • a bit lighter

Mercedes GLB

3.2 (3 Reviews)
rate
  • barely cheaper
  • very slightly more trunk space

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

X4

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mercedes GLB is barely cheaper – starting at 50,600 £ , while the BMW X4 costs 51,900 £ . That’s a price difference of around 1,245 £.

GLB

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the BMW X4 offers clearly more power – delivering 510 HP compared to 354 HP. That’s roughly 156 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW X4 is considerably 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 X4 delivers clearly more torque with 700 Nm compared to 515 Nm. That’s about 185 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.

Both vehicles offer seating for 5 people.

In terms of curb weight, BMW X4 is a bit lighter – 1,875 kg compared to 2,200 kg. The difference is around 325 kg.

Looking at boot space, the Mercedes GLB offers very slightly more boot space – 540 L compared to 525 L. That’s a difference of about 15 L.

When it comes to payload, the BMW X4 carries only slightly more – 545 kg compared to 500 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The BMW X4 holds a solid overall lead 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
details

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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.

details
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Reviews BMW X4

No reviews yet. Share your experience and help others decide.

Mercedes GLB

The Mercedes GLB is a practical compact SUV that mixes boxy, family-friendly space with premium German polish, making it an appealing choice for buyers who want usefulness without pretension. It drives with a confident, composed feel and somehow manages to look both rugged and refined — the grown-up SUV that still likes to have fun.

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Reviews Mercedes GLB

3.2 (3 Reviews)
rate
Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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BMW X4
Mercedes GLB

Costs and Consumption
Price
51,900 - 93,000 £
Price
50,600 - 62,400 £
Consumption L/100km
6 - 10.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
15.8 - 15.9 kWh/100km
Electric Range
-
Electric Range
614 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
156 - 244 g/km
co2
0 g/km
Fuel tank capacity
65 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1,875 - 2,095 kg
Curb weight
2,200 - 2,280 kg
Trunk capacity
525 L
Trunk capacity
540 L
Length
4,751 - 4,754 mm
Length
-
Width
1,918 - 1,938 mm
Width
1,861 mm
Height
1,620 - 1,621 mm
Height
-
Max trunk capacity
1,430 L
Max trunk capacity
-
Payload
415 - 545 kg
Payload
500 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Petrol
Engine Type
Electric
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
184 - 510 HP
Power HP
272 - 354 HP
Acceleration 0-100km/h
3.8 - 8.4 s
Acceleration 0-100km/h
5.5 - 7.4 s
Max Speed
213 - 250 km/h
Max Speed
-
Torque
300 - 700 Nm
Torque
335 - 515 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
135 - 375 kW
Power kW
200 - 260 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
-

General
Model Year
2,023 - 2,024
Model Year
2,026
CO2 Efficiency Class
F, G
CO2 Efficiency Class
A
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.