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Citroen C3 Aircross vs Mercedes GLB comparison

Compare performance (145 HP vs 354 HP), boot space and price (16,200 £ vs 50,600 £ ) at a glance. Find out which car is the better choice for you – Citroen C3 Aircross or Mercedes GLB?

Citroen C3 Aircross vs Mercedes GLB: Key differences

Citroen C3 Aircross

4.4 (1 Reviews)
rate
  • clearly cheaper
  • clearly lighter

Mercedes GLB

3.2 (3 Reviews)
rate
  • clearly more power
  • only slightly more efficient
  • noticeably more electric range
  • significantly quicker 0–100 km/h
  • a bit 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

C3 Aircross

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Citroen C3 Aircross is clearly cheaper – starting at 16,200 £ , while the Mercedes GLB costs 50,600 £ . That’s a price difference of around 34,421 £.

In terms of energy consumption, the Mercedes GLB is only slightly more efficient: consuming 15.8 kWh/100km compared to 16.1 kWh/100km for the Citroen C3 Aircross. That’s a difference of about 0.3 kWh/100km.

As for electric range, the Mercedes GLB offers noticeably more range – reaching up to 631 km, about 231 km more than the Citroen C3 Aircross.

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 Mercedes GLB offers clearly more power – delivering 354 HP compared to 145 HP. That’s roughly 209 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is significantly quicker – completing the sprint in 5.5 s, while the Citroen C3 Aircross takes 12.3 s. That’s about 6.8 s quicker.

There’s also a difference in torque: the Mercedes GLB delivers substantially more torque with 515 Nm compared to 230 Nm. That’s about 285 Nm more.

C3 Aircross

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, Citroen C3 Aircross is clearly lighter – 1,312 kg compared to 2,200 kg. The difference is around 888 kg.

Looking at boot space, the Mercedes GLB offers a bit more boot space – 540 L compared to 460 L. That’s a difference of about 80 L.

When it comes to payload, the Mercedes GLB carries very slightly more – 500 kg compared to 462 kg. That’s a difference of about 38 kg.

Who wins the race in the data check?

The Mercedes GLB 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 £50,600
GLB

Mercedes GLB

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 272 - 354 HP
  • Consumption kWh/100km : 15.8 - 15.9 kWh/100km
  • Electric Range : 614 - 631 km
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Frequently compared as well

Citroen C3 Aircross
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Citroen C3 Aircross

The Citroën C3 Aircross is a cheeky compact SUV that trades bland conformity for playful French character and clever practicality, ideal if you want a car with personality. It soaks up city life with a comfortable ride, inventive cabin tricks and a look that turns heads without asking for attention.

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Reviews Citroen C3 Aircross

4.4 (1 Reviews)
rate

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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Citroen C3 Aircross
Mercedes GLB

Costs and Consumption
Price
16,200 - 28,900 £
Price
50,600 - 62,400 £
Consumption L/100km
5.3 - 5.9 L/100km
Consumption L/100km
-
Consumption kWh/100km
16.1 - 18.3 kWh/100km
Consumption kWh/100km
15.8 - 15.9 kWh/100km
Electric Range
303 - 400 km
Electric Range
614 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 134 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1,312 - 1,608 kg
Curb weight
2,200 - 2,280 kg
Trunk capacity
460 L
Trunk capacity
540 L
Length
4,395 mm
Length
-
Width
1,795 mm
Width
1,861 mm
Height
1,640 mm
Height
-
Max trunk capacity
1,600 L
Max trunk capacity
-
Payload
407 - 462 kg
Payload
500 kg

Engine and Performance
Engine Type
Electric, Petrol, Petrol MHEV
Engine Type
Electric
Transmission
Automatic, Manuel
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
101 - 145 HP
Power HP
272 - 354 HP
Acceleration 0-100km/h
12.3 - 13 s
Acceleration 0-100km/h
5.5 - 7.4 s
Max Speed
143 km/h
Max Speed
-
Torque
125 - 230 Nm
Torque
335 - 515 Nm
Number of Cylinders
3
Number of Cylinders
-
Power kW
74 - 107 kW
Power kW
200 - 260 kW
Engine capacity
1,199 cm3
Engine capacity
-

General
Model Year
2,024 - 2,026
Model Year
2,026
CO2 Efficiency Class
A, D
CO2 Efficiency Class
A
Brand
Citroen
Brand
Mercedes-Benz
What drivetrain options does the Citroen C3 Aircross have?

The Citroen C3 Aircross is available as Front-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.