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BMW 4 Series Coupe vs Mercedes GLB comparison

Compare performance (530 HP vs 354 HP), boot space and price (46,200 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Coupe or Mercedes GLB?

BMW 4 Series Coupe vs Mercedes GLB: Key differences

BMW 4 Series Coupe

5 (1 Reviews)
rate
  • markedly more power
  • somewhat more efficient
  • considerably quicker 0–100 km/h
  • somewhat lighter
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • only slightly cheaper
  • moderately more trunk space
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

4 Series Coupe

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 only slightly cheaper – starting at 43,200 £ , while the BMW 4 Series Coupe costs 46,200 £ . That’s a price difference of around 3,003 £.

Fuel consumption also shows a difference: the BMW 4 Series Coupe uses 4.8 L/100km and is somewhat more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 0.9 L/100km.

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 4 Series Coupe offers markedly more power – delivering 530 HP compared to 354 HP. That’s roughly 176 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 4 Series Coupe is considerably quicker – completing the sprint in 3.5 s, while the Mercedes GLB takes 5.5 s. That’s about 2 s quicker.

There’s also a difference in torque: the BMW 4 Series Coupe delivers clearly more torque with 700 Nm compared to 515 Nm. That’s about 185 Nm more.

4 Series Coupe

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: Mercedes GLB offers more seats – 5 vs 4.

In terms of curb weight, BMW 4 Series Coupe is somewhat lighter – 1,600 kg compared to 1,840 kg. The difference is around 240 kg.

Looking at boot space, the Mercedes GLB offers moderately more boot space – 540 L compared to 440 L. That’s a difference of about 100 L.

When it comes to payload, the Mercedes GLB carries moderately more – 505 kg compared to 415 kg. That’s a difference of about 90 kg.

Who wins the race in the data check?

The BMW 4 Series Coupe 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 £46,200
4 Series Coupe

BMW 4 Series Coupe

  • Engine Type Diesel MHEV, Petrol, Petrol MHEV
  • Transmission Automatic, Manuel
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 184 - 530 HP
  • Consumption L/100km 4.8 - 10 L/100km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 4 Series Coupe

The BMW 4 Series Coupe blends aggressive styling with a driver-focused cabin, making even the humdrum commute feel like a short track day. It balances sharp handling and grown-up comfort with a dash of theatrical flair, so you get sportscar charisma without the drama of constant sacrifices.

details
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Reviews BMW 4 Series Coupe

5 (1 Reviews)
rate
Shomguy
20 Jan 2026, 13:24:39

BMW is the best

How do you mainly use this car? (optional): Family car
Safety

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.

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Reviews Mercedes GLB

3.6 (4 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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Costs and Consumption
Price
46,200 - 93,900 £
Price
43,200 - 62,400 £
Consumption L/100km
4.8 - 10 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
-
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
126 - 226 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Coupe
Body Type
SUV
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,600 - 1,895 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
440 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,852 - 1,887 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
355 - 415 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Electric, Full Hybrid
Transmission
Automatic, Manuel
Transmission
Automatic
Transmission Detail
Automatic Gearbox, Manual Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
184 - 530 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
3.5 - 7.5 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
300 - 700 Nm
Torque
280 - 515 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
135 - 390 kW
Power kW
115 - 260 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
1,499 cm3

General
Model Year
2,024 - 2,025
Model Year
2026
CO2 Efficiency Class
D, E, F, G
CO2 Efficiency Class
A, D, E
Brand
BMW
Brand
Mercedes-Benz
What drive types are available for the BMW 4 Series Coupe?

Available configurations include Rear-Wheel Drive or 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.