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BMW X3 vs Mercedes GLB - Differences and prices compared
Compare performance (398 HP vs 320 HP), boot space and price (51300 £ vs 40500 £ ) at a glance. Find out which car is the better choice for you – BMW X3 or Mercedes GLB?
X3
Costs and Efficiency:
When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.
Mercedes GLB has a noticeable advantage in terms of price – it starts at 40500 £ , while the BMW X3 costs 51300 £ . That’s a price difference of around 10748 £.
Fuel consumption also shows a difference: BMW X3 manages with 2.80 L and is therefore clearly more efficient than the Mercedes GLB with 5.60 L. The difference is about 2.80 L per 100 km.
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 X3 has a a bit edge – offering 398 HP compared to 320 HP. That’s roughly 78 HP more horsepower.
In acceleration from 0 to 100 km/h, the BMW X3 is a bit quicker – completing the sprint in 4.60 s, while the Mercedes GLB takes 5.50 s. That’s about 0.90 s faster.
There’s no difference in top speed – both reach 250 km/h.
There’s also a difference in torque: BMW X3 pulls decisively stronger with 670 Nm compared to 400 Nm. That’s about 270 Nm difference.
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X3
Space and Everyday Use:
Whether family car or daily driver – which one offers more room, flexibility and comfort?
Both vehicles offer seating for 5 people.
In curb weight, Mercedes GLB is somewhat lighter – 1640 kg compared to 1930 kg. The difference is around 290 kg.
Boot capacity is identical – both offer 570 L of storage.
In maximum load capacity, the Mercedes GLB performs barely noticeable better – up to 1805 L, which is about 105 L more than the BMW X3.
When it comes to payload, BMW X3 somewhat takes the win – 570 kg compared to 500 kg. That’s a difference of about 70 kg.
Who wins the race in the data check?
The BMW X3 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.
BMW X3
Mercedes GLB
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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from about £51,300
BMW X3
BMW X3
4.6 (1 Reviews)
The BMW X3 mixes Bavarian poise with everyday practicality, delivering a composed ride and a cabin that feels both premium and lived-in. It’s the sort of SUV that lets you enjoy sporty handling without sacrificing family-friendly space, so you get fun and sense in one neat package.
details
Mercedes GLB
5 (1 Reviews)
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.
details
BMW X3
Mercedes GLB
Costs and Consumption |
|
|---|---|
|
Price
51300 - 72400 £
|
Price
40500 - 65300 £
|
|
Consumption L/100km
2.8 - 7.7 L
|
Consumption L/100km
5.6 - 9 L
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
-
|
|
Electric Range
88 km
|
Electric Range
-
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
64 - 175 g/km
|
co2
146 - 204 g/km
|
|
Fuel tank capacity
60 - 65 L
|
Fuel tank capacity
52 - 60 L
|
Dimensions and Body |
|
|---|---|
|
Body Type
SUV
|
Body Type
SUV
|
|
Seats
5
|
Seats
5
|
|
Doors
5
|
Doors
5
|
|
Curb weight
1930 - 2140 kg
|
Curb weight
1640 - 1820 kg
|
|
Trunk capacity
460 - 570 L
|
Trunk capacity
565 - 570 L
|
|
Length
4755 mm
|
Length
4634 - 4650 mm
|
|
Width
1920 mm
|
Width
1834 - 1850 mm
|
|
Height
1660 mm
|
Height
1665 - 1692 mm
|
|
Max trunk capacity
1700 L
|
Max trunk capacity
1800 - 1805 L
|
|
Payload
570 kg
|
Payload
500 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
|
Engine Type
Petrol MHEV, Diesel
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Automatic Gearbox
|
Transmission Detail
Dual-Clutch Automatic
|
|
Drive Type
All-Wheel Drive
|
Drive Type
Front-Wheel Drive, All-Wheel Drive
|
|
Power HP
197 - 398 HP
|
Power HP
116 - 320 HP
|
|
Acceleration 0-100km/h
4.6 - 7.8 s
|
Acceleration 0-100km/h
5.5 - 11.5 s
|
|
Max Speed
215 - 250 km/h
|
Max Speed
188 - 250 km/h
|
|
Torque
330 - 670 Nm
|
Torque
230 - 400 Nm
|
|
Number of Cylinders
4 - 6
|
Number of Cylinders
4
|
|
Power kW
145 - 293 kW
|
Power kW
85 - 235 kW
|
|
Engine capacity
1995 - 2998 cm3
|
Engine capacity
1332 - 1991 cm3
|
General |
|
|---|---|
|
Model Year
2024 - 2025
|
Model Year
2025
|
|
CO2 Efficiency Class
F, E, B
|
CO2 Efficiency Class
E, F, G
|
|
Brand
BMW
|
Brand
Mercedes-Benz
|
What drive types are available for the BMW X3?
The BMW X3 is offered with 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.