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Mercedes C Class Estate vs Audi A6 Avant comparison

Compare performance (288 HP vs 367 HP), boot space and price (42,600 £ vs 49,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes C Class Estate or Audi A6 Avant?

Mercedes C Class Estate vs Audi A6 Avant: Key differences

Mercedes C Class Estate

3.6 (1 Reviews)
rate
  • somewhat cheaper
  • barely lighter
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Audi A6 Avant

  • markedly more power
  • significantly more efficient
  • visibly quicker 0–100 km/h
  • marginally more trunk space
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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

C Class Estate

Costs and Efficiency:

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

Mercedes C Class Estate is somewhat cheaper – starting at 42,600 £ , while the Audi A6 Avant costs 49,700 £ . That’s a price difference of around 7,114 £.

Fuel consumption also shows a difference: the Audi A6 Avant uses 2.3 L/100km and is significantly more efficient than the Mercedes C Class Estate with 4.7 L/100km. The difference is about 2.4 L/100km.

A6 Avant

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Audi A6 Avant offers markedly 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 Avant is visibly 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 Avant delivers only slightly more torque with 580 Nm compared to 550 Nm. That’s about 30 Nm more.

C Class Estate

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 terms of curb weight, Mercedes C Class Estate is barely lighter – 1,755 kg compared to 1,865 kg. The difference is around 110 kg.

Looking at boot space, the Audi A6 Avant offers marginally more boot space – 503 L compared to 490 L. That’s a difference of about 13 L.

When it comes to payload, the Audi A6 Avant carries only slightly more – 570 kg compared to 565 kg. That’s a difference of about 5 kg.

Who wins the race in the data check?

The Audi A6 Avant 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 £49,700
A6 Avant

Audi A6 Avant

  • Engine Type Petrol, Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 204 - 367 HP
  • Consumption L/100km 2.3 - 7.5 L/100km
  • Electric Range 94 - 101 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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)
rate
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

Audi A6 Avant

The Audi A6 Avant wraps executive poise and usable practicality into an impeccably finished estate that makes everyday driving feel noticeably more grown-up. It serves up a calm, composed ride and clever packaging for buyers who want space and refinement without ostentation — the sensible choice that still manages to impress.

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Reviews Audi A6 Avant

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Costs and Consumption
Price
42,600 - 67,200 £
Price
49,700 - 70,200 £
Consumption L/100km
4.7 - 6.9 L/100km
Consumption L/100km
2.3 - 7.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
94 - 101 km
Battery Capacity
-
Battery Capacity
-
co2
123 - 157 g/km
co2
53 - 170 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
Estate
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,755 - 1,940 kg
Curb weight
1,865 - 2,240 kg
Trunk capacity
490 L
Trunk capacity
404 - 503 L
Length
-
Length
-
Width
1,820 mm
Width
1,875 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
460 - 565 kg
Payload
535 - 570 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol, Petrol MHEV, Diesel MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
186 - 288 HP
Power HP
204 - 367 HP
Acceleration 0-100km/h
5.8 - 8.8 s
Acceleration 0-100km/h
4.7 - 8.3 s
Max Speed
-
Max Speed
-
Torque
250 - 550 Nm
Torque
340 - 580 Nm
Number of Cylinders
4
Number of Cylinders
4 - 6
Power kW
137 - 212 kW
Power kW
150 - 270 kW
Engine capacity
1,496 - 1,999 cm3
Engine capacity
1,968 - 2,995 cm3

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

The Mercedes C Class Estate is offered with Rear-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.