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Citroen C5 X vs Mercedes C Class Sedan - Differences and prices compared

Compare performance (145 HP vs 680 HP), boot space and price (36900 £ vs 41200 £ ) at a glance. Find out which car is the better choice for you – Citroen C5 X or Mercedes C Class Sedan?

Citroen C5 X

4 (3 Reviews)
rate

Mercedes C Class Sedan

Here’s where it gets real: The technical differences in detail

C5 X

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.

Citroen C5 X has a to a small extent advantage in terms of price – it starts at 36900 £ , while the Mercedes C Class Sedan costs 41200 £ . That’s a price difference of around 4258 £.

Fuel consumption also shows a difference: Mercedes C Class Sedan manages with 1.60 L and is therefore convincingly more efficient than the Citroen C5 X with 5.10 L. The difference is about 3.50 L per 100 km.

C Class Sedan

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 C Class Sedan has a clearly edge – offering 680 HP compared to 145 HP. That’s roughly 535 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes C Class Sedan is clearly quicker – completing the sprint in 3.40 s, while the Citroen C5 X takes 10.40 s. That’s about 7 s faster.

In terms of top speed, the Mercedes C Class Sedan performs noticeable better – reaching 280 km/h, while the Citroen C5 X tops out at 211 km/h. The difference is around 69 km/h.

There’s also a difference in torque: Mercedes C Class Sedan pulls decisively stronger with 1020 Nm compared to 230 Nm. That’s about 790 Nm difference.

C5 X

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, Citroen C5 X is slight lighter – 1591 kg compared to 1695 kg. The difference is around 104 kg.

In terms of boot space, the Citroen C5 X offers to a small extent more room – 545 L compared to 455 L. That’s a difference of about 90 L.

When it comes to payload, Mercedes C Class Sedan evident takes the win – 570 kg compared to 399 kg. That’s a difference of about 171 kg.

Who wins the race in the data check?

The Mercedes C Class Sedan 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.

Citroen C5 X
Mercedes C Class Sedan

Costs and Consumption

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Engine and Performance

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Dimensions and Body

View detailed analysis
from about £41,200
C Class Sedan

Mercedes C Class Sedan

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 183 - 680 HP
  • Consumption L/100km : 1.6 - 9 L
  • Electric Range : 11 - 117 km

Citroen C5 X

4 (3 Reviews)
rate

Citroen C5 X combines the poise of a sleek crossover with the practicality of an estate, delivering a calm, comfortable cabin that feels designed for long, relaxed journeys rather than racetrack drama. If you want a car that pampers passengers, swallows everyday luggage and glides over rough roads like a diplomat dodging awkward questions, this is your kind of transport.

details

Mercedes C Class Sedan

The Mercedes C‑Class is the compact executive that dresses like it owns the boulevard, with an interior that blends modern elegance and plush comfort to make everyday driving feel unexpectedly special. On the road it pairs poise with a hint of cheeky agility, rewarding drivers who want refinement without forfeiting a touch of fun — and yes, it still looks great in the driveway.

details
Citroen C5 X
Mercedes C Class Sedan

Costs and Consumption

Price
36900 - 39400 £
Price
41200 - 103100 £
Consumption L/100km
5.10 L
Consumption L/100km
1.6 - 9 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
11 - 117 km
Battery Capacity
-
Battery Capacity
19.50 kWh
co2
116 g/km
co2
41 - 205 g/km
Fuel tank capacity
52 L
Fuel tank capacity
40 - 66 L

Dimensions and Body

Body Type
Estate
Body Type
Sedan
Seats
5
Seats
5
Doors
5
Doors
4
Curb weight
1591 kg
Curb weight
1695 - 2195 kg
Trunk capacity
545 L
Trunk capacity
280 - 455 L
Length
4805 mm
Length
4751 - 4842 mm
Width
1815 mm
Width
1820 - 1900 mm
Height
1485 mm
Height
1438 - 1458 mm
Max trunk capacity
1640 L
Max trunk capacity
-
Payload
399 kg
Payload
480 - 570 kg

Engine and Performance

Engine Type
Petrol MHEV
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
145 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
10.40 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
211 km/h
Max Speed
230 - 280 km/h
Torque
230 Nm
Torque
250 - 1020 Nm
Number of Cylinders
3
Number of Cylinders
4
Power kW
107 kW
Power kW
135 - 500 kW
Engine capacity
1199 cm3
Engine capacity
1496 - 1999 cm3

General

Model Year
2025
Model Year
2024 - 2025
CO2 Efficiency Class
D
CO2 Efficiency Class
E, B, D, G
Brand
Citroen
Brand
Mercedes-Benz
Is the Citroen C5 X offered with different drivetrains?

The Citroen C5 X 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.