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Citroen C4 vs Mercedes GLB comparison

Compare performance (156 HP vs 354 HP), boot space and price (20600 £ vs 50600 £ ) at a glance. Find out which car is the better choice for you – Citroen C4 or Mercedes GLB?

Citroen C4 vs Mercedes GLB: Key differences

Citroen C4

4.7 (3 Reviews)
rate
  • clearly cheaper
  • hardly perceptible more efficient
  • significantly lighter

Mercedes GLB

3.2 (3 Reviews)
rate
  • significantly more power
  • distinct more electric range
  • decisively quicker from 0–100 km/h
  • slight 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

C4

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.

Citroen C4 has a clearly advantage in terms of price – it starts at 20600 £ , while the Mercedes GLB costs 50600 £ . That’s a price difference of around 30050 £.

In terms of energy consumption, the advantage goes to the Citroen C4: with 14.50 kWh per 100 km, it’s hardly perceptible more efficient than the Mercedes GLB with 15.80 kWh. That’s a difference of about 1.30 kWh.

As for electric range, the Mercedes GLB performs distinct better – achieving up to 631 km, about 204 km more than the Citroen C4.

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 Mercedes GLB has a significantly edge – offering 354 HP compared to 156 HP. That’s roughly 198 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes GLB is decisively quicker – completing the sprint in 5.50 s, while the Citroen C4 takes 8 s. That’s about 2.50 s faster.

There’s also a difference in torque: Mercedes GLB pulls convincingly stronger with 515 Nm compared to 270 Nm. That’s about 245 Nm difference.

C4

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 curb weight, Citroen C4 is significantly lighter – 1403 kg compared to 2200 kg. The difference is around 797 kg.

In terms of boot space, the Mercedes GLB offers slight more room – 540 L compared to 510 L. That’s a difference of about 30 L.

When it comes to payload, Mercedes GLB to a small extent takes the win – 500 kg compared to 406 kg. That’s a difference of about 94 kg.

Who wins the race in the data check?

The Mercedes GLB stands out in the key areas 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.

Frequently compared as well

Citroen C3
Citroen C4
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The Citroën C3 is the cheeky city hatch that charms with low running costs, soft suspension and easy parking, while the Citroën C4 stretches into crossover territory with more space, stronger engines and sharper tech. If you mostly nip around town grab the C3 for its thrift and comfort; if you want …
Citroen C3 Aircross
Citroen C4
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In a head-to-head comparison, the Citroën C3 Aircross and Citroën C4 offer distinct advantages catering to diverse driving needs. The C3 Aircross, with its compact SUV design, provides a higher driving position and greater versatility, ideal for urban adventures or family outings. Conversely, the …
Citroen C4
Mercedes GLB

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £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
  • Electric Range : 614 - 631 km
details

Citroen C4

4.7 (3 Reviews)
rate

Citroën C4 wears its French eccentricity with confidence, pairing bold, sculpted styling with a supremely comfortable ride that turns mundane commutes into a gentler affair. If you value relaxed comfort, clever practicality and a car with personality rather than pretence, the C4 is a charming, sensible choice — and it won't make you miss the usual hot‑hatch theatrics.

details
C4_2021_EXT (7)
C4_2021_EXT (13)
C4_2021_EXT (11)
CL 20
C4_INT_2021 (8)

Mercedes GLB

3.2 (3 Reviews)
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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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19C0853_003
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19C0853_069
19C0797_007

Reviews Citroen C4

4.7 (3 Reviews)
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Tomasz
25 Dec 2025, 23:25:28

A very comfortable car, but with a flaw I noticed: very high door sills, which you really feel when getting in.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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
Citroen C4
Mercedes GLB

Costs and Consumption
Price
20600 - 32200 £
Price
50600 - 62400 £
Consumption L/100km
4.7 - 4.8 L
Consumption L/100km
-
Consumption kWh/100km
14.5 - 15.3 kWh
Consumption kWh/100km
15.8 - 15.9 kWh
Electric Range
354 - 427 km
Electric Range
614 - 631 km
Battery Capacity
46 - 51 kWh
Battery Capacity
-
co2
0 - 108 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
4 - 5
Doors
-
Curb weight
1403 - 1659 kg
Curb weight
2200 - 2280 kg
Trunk capacity
380 - 510 L
Trunk capacity
540 L
Length
4350 - 4580 mm
Length
-
Width
1800 - 1834 mm
Width
1861 mm
Height
1520 - 1525 mm
Height
-
Max trunk capacity
1250 - 1360 L
Max trunk capacity
-
Payload
379 - 406 kg
Payload
500 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
110 - 156 HP
Power HP
272 - 354 HP
Acceleration 0-100km/h
8 - 10.8 s
Acceleration 0-100km/h
5.5 - 7.4 s
Max Speed
150 km/h
Max Speed
-
Torque
205 - 270 Nm
Torque
335 - 515 Nm
Number of Cylinders
3
Number of Cylinders
-
Power kW
81 - 115 kW
Power kW
200 - 260 kW
Engine capacity
1199 cm3
Engine capacity
-

General
Model Year
2025 - 2026
Model Year
2026
CO2 Efficiency Class
A, C
CO2 Efficiency Class
A
Brand
Citroen
Brand
Mercedes-Benz

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What drivetrain options does the Citroen C4 have?

The Citroen C4 is offered with Front-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.