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BMW i5 vs Mercedes GLB comparison
Compare performance (601 HP vs 354 HP), boot space and price (60,800 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – BMW i5 or Mercedes GLB?
BMW i5 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.
i5
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 substantially cheaper – starting at 43,200 £ , while the BMW i5 costs 60,800 £ . That’s a price difference of around 17,574 £.
In terms of energy consumption, the BMW i5 is barely more efficient: consuming 14.7 kWh/100km compared to 15.4 kWh/100km for the Mercedes GLB. That’s a difference of about 0.7 kWh/100km.
As for electric range, the Mercedes GLB offers barely more range – reaching up to 631 km, about 4 km more than the BMW i5.
GLB
Engine and Performance:
Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.
When it comes to engine power, the BMW i5 offers clearly more power – delivering 601 HP compared to 354 HP. That’s roughly 247 HP more horsepower.
When accelerating from 0 to 100 km/h, the BMW i5 is substantially 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 i5 delivers noticeably more torque with 820 Nm compared to 515 Nm. That’s about 305 Nm more.
i5
Space and Everyday Use:
Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.
Both vehicles offer seating for 5 people.
In terms of curb weight, Mercedes GLB is a bit lighter – 1,840 kg compared to 2,195 kg. The difference is around 355 kg.
Looking at boot space, the Mercedes GLB offers very slightly more boot space – 540 L compared to 490 L. That’s a difference of about 50 L.
When it comes to payload, the BMW i5 carries very slightly more – 545 kg compared to 505 kg. That’s a difference of about 40 kg.
Who wins the race in the data check?
The BMW i5 holds a decisive 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 £60,800
BMW i5
BMW i5
Mercedes GLB
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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BMW i5
The BMW i5 swaps predictable executive-car manners for a confident electric vibe, marrying refined comfort with surprisingly engaging steering. It’s a practical choice that doesn’t feel dull, offering the kind of clean, premium experience that makes commuting feel like a small indulgence.
details
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.
details
BMW i5
Mercedes GLB
Costs and Consumption |
|
|---|---|
|
Price
60,800 - 85,900 £
|
Price
43,200 - 62,400 £
|
|
Consumption L/100km
-
|
Consumption L/100km
5.7 - 6.1 L/100km
|
|
Consumption kWh/100km
14.7 - 17.1 kWh/100km
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
|
Electric Range
540 - 627 km
|
Electric Range
431 - 631 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
0 g/km
|
co2
0 - 138 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
Sedan
|
Body Type
SUV
|
|
Seats
5
|
Seats
5
|
|
Doors
-
|
Doors
-
|
|
Curb weight
2,195 - 2,370 kg
|
Curb weight
1,840 - 2,280 kg
|
|
Trunk capacity
490 L
|
Trunk capacity
540 L
|
|
Length
-
|
Length
-
|
|
Width
1,900 mm
|
Width
1,861 mm
|
|
Height
-
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
525 - 545 kg
|
Payload
485 - 505 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric
|
Engine Type
Electric, Full Hybrid
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Reduction Gearbox
|
Transmission Detail
Reduction Gearbox
|
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
340 - 601 HP
|
Power HP
156 - 354 HP
|
|
Acceleration 0-100km/h
3.8 - 6 s
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
|
Max Speed
-
|
Max Speed
-
|
|
Torque
430 - 820 Nm
|
Torque
280 - 515 Nm
|
|
Number of Cylinders
-
|
Number of Cylinders
4
|
|
Power kW
250 - 442 kW
|
Power kW
115 - 260 kW
|
|
Engine capacity
-
|
Engine capacity
1,499 cm3
|
General |
|
|---|---|
|
Model Year
2,023 - 2,024
|
Model Year
2026
|
|
CO2 Efficiency Class
A
|
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.