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Mercedes GLB vs Mercedes GLA comparison
Compare performance (354 HP vs 421 HP), boot space and price (43,200 £ vs 38,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Mercedes GLA?
Mercedes GLB vs Mercedes GLA: 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.
GLB
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 GLA is somewhat cheaper – starting at 38,800 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 4,361 £.
Fuel consumption also shows a difference: the Mercedes GLA uses 2.9 L/100km and is significantly more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 2.8 L/100km.
As for electric range, the Mercedes GLB offers clearly more range – reaching up to 631 km, about 557 km more than the Mercedes GLA.
GLA
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 Mercedes GLA offers moderately more power – delivering 421 HP compared to 354 HP. That’s roughly 67 HP more horsepower.
When accelerating from 0 to 100 km/h, the Mercedes GLA is noticeably quicker – completing the sprint in 4.3 s, while the Mercedes GLB takes 5.5 s. That’s about 1.2 s quicker.
There’s also a difference in torque: the Mercedes GLB delivers barely more torque with 515 Nm compared to 500 Nm. That’s about 15 Nm more.
GLB
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 GLA is a bit lighter – 1,570 kg compared to 1,840 kg. The difference is around 270 kg.
Looking at boot space, the Mercedes GLB offers a bit more boot space – 540 L compared to 435 L. That’s a difference of about 105 L.
When it comes to payload, the Mercedes GLB carries marginally more – 505 kg compared to 500 kg. That’s a difference of about 5 kg.
Who wins the race in the data check?
The Mercedes GLB holds a slight edge 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
Mercedes GLB
Mercedes GLA
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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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
Mercedes GLA
The Mercedes GLA is a compact luxury crossover that brings Mercedes-Benz's refined design and premium cabin materials into a practical, city-friendly package. It combines comfortable ride quality and intuitive tech with poised handling, making it a confident choice for everyday driving and longer journeys.
details
Mercedes GLB
Mercedes GLA
Costs and Consumption |
|
|---|---|
|
Price
43,200 - 62,400 £
|
Price
38,800 - 75,300 £
|
|
Consumption L/100km
5.7 - 6.1 L/100km
|
Consumption L/100km
2.9 - 9.5 L/100km
|
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
Consumption kWh/100km
-
|
|
Electric Range
431 - 631 km
|
Electric Range
74 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
0 - 138 g/km
|
co2
66 - 216 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
SUV
|
Body Type
SUV
|
|
Seats
5
|
Seats
5
|
|
Doors
-
|
Doors
-
|
|
Curb weight
1,840 - 2,280 kg
|
Curb weight
1,570 - 1,810 kg
|
|
Trunk capacity
540 L
|
Trunk capacity
385 - 435 L
|
|
Length
-
|
Length
-
|
|
Width
1,861 mm
|
Width
1,834 - 1,849 mm
|
|
Height
-
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
485 - 505 kg
|
Payload
480 - 500 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric, Full Hybrid
|
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel, Petrol
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Reduction Gearbox
|
Transmission Detail
Dual-Clutch Automatic
|
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
Drive Type
Front-Wheel Drive, All-Wheel Drive
|
|
Power HP
156 - 354 HP
|
Power HP
116 - 421 HP
|
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
Acceleration 0-100km/h
4.3 - 11 s
|
|
Max Speed
-
|
Max Speed
-
|
|
Torque
280 - 515 Nm
|
Torque
230 - 500 Nm
|
|
Number of Cylinders
4
|
Number of Cylinders
4
|
|
Power kW
115 - 260 kW
|
Power kW
85 - 310 kW
|
|
Engine capacity
1,499 cm3
|
Engine capacity
1,332 - 1,991 cm3
|
General |
|
|---|---|
|
Model Year
2026
|
Model Year
2025
|
|
CO2 Efficiency Class
A, D, E
|
CO2 Efficiency Class
E, F, B, G
|
|
Brand
Mercedes-Benz
|
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.