Compare performance (145 HP vs 585 HP), boot space and price (36,900 £ vs 104,000 £ ) at a glance. Find out which car is the better choice for you – Citroen C5 X or Mercedes S Class?
Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
Citroen C5 X is substantially cheaper – starting at 36,900 £ , while the Mercedes S Class costs 104,000 £ . That’s a price difference of around 67,111 £.
Fuel consumption also shows a difference: the Mercedes S Class uses 2.2 L/100km and is considerably more efficient than the Citroen C5 X with 5.1 L/100km. The difference is about 2.9 L/100km.
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 S Class offers substantially more power – delivering 585 HP compared to 145 HP. That’s roughly 440 HP more horsepower.
When accelerating from 0 to 100 km/h, the Mercedes S Class is significantly quicker – completing the sprint in 4 s, while the Citroen C5 X takes 10.4 s. That’s about 6.4 s quicker.
There’s also a difference in torque: the Mercedes S Class delivers substantially more torque with 750 Nm compared to 230 Nm. That’s about 520 Nm more.
Whether family car or daily driver – which one offers more room, flexibility and comfort?
Both vehicles offer seating for 5 people.
In terms of curb weight, Citroen C5 X is clearly lighter – 1,591 kg compared to 2,165 kg. The difference is around 574 kg.
When it comes to payload, the Mercedes S Class carries clearly more – 660 kg compared to 399 kg. That’s a difference of about 261 kg.
The Mercedes S Class is far ahead 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 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.
detailsThe Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.
detailsCosts and Consumption |
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|---|---|
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Price
36,900 - 39,400 £
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Price
104,000 - 139,100 £
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Consumption L/100km
5.1 L/100km
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Consumption L/100km
2.2 - 10.6 L/100km
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Consumption kWh/100km
-
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Consumption kWh/100km
-
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Electric Range
-
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Electric Range
102 - 118 km
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Battery Capacity
-
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Battery Capacity
-
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co2
116 g/km
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co2
50 - 241 g/km
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Fuel tank capacity
52 L
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Fuel tank capacity
-
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Dimensions and Body |
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|---|---|
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Body Type
Estate
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Body Type
Sedan
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Seats
5
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Seats
5
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Doors
5
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Doors
-
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Curb weight
1,591 kg
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Curb weight
2,165 - 2,515 kg
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Trunk capacity
545 L
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Trunk capacity
-
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Length
4,805 mm
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Length
-
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Width
1,815 mm
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Width
1,921 mm
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Height
1,485 mm
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Height
-
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Max trunk capacity
1,640 L
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Max trunk capacity
-
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Payload
399 kg
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Payload
555 - 660 kg
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Engine and Performance |
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|---|---|
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Engine Type
Petrol MHEV
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Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Dual-Clutch Automatic
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Transmission Detail
Automatic Gearbox
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Drive Type
Front-Wheel Drive
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Drive Type
All-Wheel Drive, Rear-Wheel Drive
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Power HP
145 HP
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Power HP
336 - 585 HP
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Acceleration 0-100km/h
10.4 s
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Acceleration 0-100km/h
4 - 5.7 s
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Max Speed
211 km/h
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Max Speed
-
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Torque
230 Nm
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Torque
560 - 750 Nm
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Number of Cylinders
3
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Number of Cylinders
6 - 8
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Power kW
107 kW
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Power kW
247 - 430 kW
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Engine capacity
1,199 cm3
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Engine capacity
2,989 - 3,982 cm3
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General |
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|---|---|
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Model Year
2,025
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Model Year
2,026
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CO2 Efficiency Class
D
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CO2 Efficiency Class
G, B, F
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Brand
Citroen
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Brand
Mercedes-Benz
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