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Audi A6 Limousine vs Citroen C5 X comparison

Compare performance (367 HP vs 145 HP), boot space and price (47600 £ vs 36900 £ ) at a glance. Find out which car is the better choice for you – Audi A6 Limousine or Citroen C5 X?

Audi A6 Limousine vs Citroen C5 X: Key differences

Audi A6 Limousine

  • significantly more power
  • clearly more efficient
  • decisively quicker from 0–100 km/h

Citroen C5 X

4 (3 Reviews)
rate
  • clearly perceptible cheaper
  • a bit lighter
  • minimal more trunk space

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

A6 Limousine

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Citroen C5 X has a clearly perceptible advantage in terms of price – it starts at 36900 £ , while the Audi A6 Limousine costs 47600 £ . That’s a price difference of around 10663 £.

Fuel consumption also shows a difference: Audi A6 Limousine manages with 2.20 L and is therefore clearly more efficient than the Citroen C5 X with 5.10 L. The difference is about 2.90 L per 100 km.

C5 X

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 Audi A6 Limousine has a significantly edge – offering 367 HP compared to 145 HP. That’s roughly 222 HP more horsepower.

In acceleration from 0 to 100 km/h, the Audi A6 Limousine is decisively quicker – completing the sprint in 4.70 s, while the Citroen C5 X takes 10.40 s. That’s about 5.70 s faster.

In terms of top speed, the Audi A6 Limousine performs slightly better – reaching 250 km/h, while the Citroen C5 X tops out at 211 km/h. The difference is around 39 km/h.

There’s also a difference in torque: Audi A6 Limousine pulls clearly stronger with 580 Nm compared to 230 Nm. That’s about 350 Nm difference.

A6 Limousine

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 C5 X is a bit lighter – 1591 kg compared to 1845 kg. The difference is around 254 kg.

In terms of boot space, the Citroen C5 X offers minimal more room – 545 L compared to 492 L. That’s a difference of about 53 L.

When it comes to payload, Audi A6 Limousine distinct takes the win – 625 kg compared to 399 kg. That’s a difference of about 226 kg.

Who wins the race in the data check?

The Audi A6 Limousine 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.

Frequently compared as well

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Citroen C5 X
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Unsure whether the Citroen C5 X or the Peugeot 3008 is the better match? Compare both models directly and discover differences in power, efficiency, comfort and value for money — all summarized in one easy view to support your decision.
Audi A6 Limousine
Citroen C5 X

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £47,600
A6 Limousine

Audi A6 Limousine

  • Engine Type : Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 204 - 367 HP
  • Consumption L/100km : 2.2 - 6.9 L
  • Electric Range : 97 - 105 km
details

Audi A6 Limousine

The Audi A6 cuts a clean, purposeful silhouette with an interior that feels like a quiet, high-tech office on wheels—luxurious materials and clever gadgets make long journeys surprisingly pleasant. It balances composed, confident driving with enough flair to keep you entertained, making it a sensible choice for buyers who want executive polish without showing off.

details
A185651_overfull
A185640_overfull
A185643_overfull
A185645_overfull
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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
C5X_PHEV_UK_2022_EXT (21)
C5X_PHEV_2022_EXT (12)
C5X_PHEV_2022_EXT (23)
C5X_2022_INT (20)

Reviews Audi A6 Limousine

Reviews Citroen C5 X

4 (3 Reviews)
rate
Audi A6 Limousine
Citroen C5 X

Costs and Consumption
Price
47600 - 68100 £
Price
36900 - 39400 £
Consumption L/100km
2.2 - 6.9 L
Consumption L/100km
5.10 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
97 - 105 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
49 - 157 g/km
co2
116 g/km
Fuel tank capacity
56 - 60 L
Fuel tank capacity
52 L

Dimensions and Body
Body Type
Sedan
Body Type
Estate
Seats
5
Seats
5
Doors
4
Doors
5
Curb weight
1845 - 2220 kg
Curb weight
1591 kg
Trunk capacity
354 - 492 L
Trunk capacity
545 L
Length
4999 mm
Length
4805 mm
Width
1875 mm
Width
1815 mm
Height
1452 mm
Height
1485 mm
Max trunk capacity
-
Max trunk capacity
1640 L
Payload
535 - 625 kg
Payload
399 kg

Engine and Performance
Engine Type
Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
Engine Type
Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
204 - 367 HP
Power HP
145 HP
Acceleration 0-100km/h
4.7 - 8.2 s
Acceleration 0-100km/h
10.40 s
Max Speed
243 - 250 km/h
Max Speed
211 km/h
Torque
340 - 580 Nm
Torque
230 Nm
Number of Cylinders
4 - 6
Number of Cylinders
3
Power kW
150 - 270 kW
Power kW
107 kW
Engine capacity
1968 - 2995 cm3
Engine capacity
1199 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
F, D, E, B
CO2 Efficiency Class
D
Brand
Audi
Brand
Citroen

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What drive types are available for the Audi A6 Limousine?

Available configurations include Front-Wheel Drive or All-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.