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Audi A6 Limousine vs Mercedes C Class Estate comparison

Compare performance (367 HP vs 288 HP), boot space and price (47,600 £ vs 42,600 £ ) at a glance. Find out which car is the better choice for you – Audi A6 Limousine or Mercedes C Class Estate?

Audi A6 Limousine vs Mercedes C Class Estate: Key differences

Audi A6 Limousine

  • visibly more power
  • substantially more efficient
  • noticeably quicker 0–100 km/h
  • only slightly more trunk space
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Mercedes C Class Estate

3.6 (1 Reviews)
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  • somewhat cheaper
  • very slightly lighter
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

A6 Limousine

Costs and Efficiency:

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

Mercedes C Class Estate is somewhat cheaper – starting at 42,600 £ , while the Audi A6 Limousine costs 47,600 £ . That’s a price difference of around 4,971 £.

Fuel consumption also shows a difference: the Audi A6 Limousine uses 2.2 L/100km and is substantially more efficient than the Mercedes C Class Estate with 4.7 L/100km. The difference is about 2.5 L/100km.

C Class Estate

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 Audi A6 Limousine offers visibly more power – delivering 367 HP compared to 288 HP. That’s roughly 79 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A6 Limousine is noticeably quicker – completing the sprint in 4.7 s, while the Mercedes C Class Estate takes 5.8 s. That’s about 1.1 s quicker.

There’s also a difference in torque: the Audi A6 Limousine delivers barely more torque with 580 Nm compared to 550 Nm. That’s about 30 Nm more.

A6 Limousine

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 terms of curb weight, Mercedes C Class Estate is very slightly lighter – 1,755 kg compared to 1,845 kg. The difference is around 90 kg.

Looking at boot space, the Audi A6 Limousine offers only slightly more boot space – 492 L compared to 490 L. That’s a difference of about 2 L.

When it comes to payload, the Audi A6 Limousine carries marginally more – 625 kg compared to 565 kg. That’s a difference of about 60 kg.

Who wins the race in the data check?

The Audi A6 Limousine 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.

from £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 - 7.3 L/100km
  • Electric Range 97 - 105 km
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Audi A6 Limousine
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

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Reviews Audi A6 Limousine

No reviews yet. Share your experience and help others decide.

Mercedes C Class Estate

The Mercedes C-Class wagon dresses Mercedes refinement in a sensible, practical package, marrying a sleek estate silhouette with a plush, high-quality cabin that feels more premium than its badge implies. It quietly soaks up motorway miles and cartloads of family kit with composed handling and effortless comfort — a clever alternative to an SUV for buyers who still like to steer.

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Reviews Mercedes C Class Estate

3.6 (1 Reviews)
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Storcki
15 May 2026, 10:11:16

To me, the CLA's interior and front end are tasteless and an affront — the C estate is clearly much more attractive.

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

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Audi A6 Limousine
Mercedes C Class Estate

Costs and Consumption
Price
47,600 - 68,100 £
Price
42,600 - 67,200 £
Consumption L/100km
2.2 - 7.3 L/100km
Consumption L/100km
4.7 - 6.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
97 - 105 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
49 - 166 g/km
co2
123 - 157 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Estate
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,845 - 2,220 kg
Curb weight
1,755 - 1,940 kg
Trunk capacity
354 - 492 L
Trunk capacity
490 L
Length
-
Length
-
Width
1,875 mm
Width
1,820 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
535 - 625 kg
Payload
460 - 565 kg

Engine and Performance
Engine Type
Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
Engine Type
Petrol MHEV, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
204 - 367 HP
Power HP
186 - 288 HP
Acceleration 0-100km/h
4.7 - 8.2 s
Acceleration 0-100km/h
5.8 - 8.8 s
Max Speed
-
Max Speed
-
Torque
340 - 580 Nm
Torque
250 - 550 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
150 - 270 kW
Power kW
137 - 212 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
1,496 - 1,999 cm3

General
Model Year
2025
Model Year
2,024 - 2,025
CO2 Efficiency Class
F, D, E, B
CO2 Efficiency Class
E, F, D
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi A6 Limousine have?

Available configurations include Front-Wheel Drive or All-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.