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Mercedes C-Class EQ vs Audi A6 e-tron Avant comparison
Compare performance (489 HP vs 551 HP), boot space and price (58,000 £ vs 55,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes C-Class EQ or Audi A6 e-tron Avant?
Mercedes C-Class EQ vs Audi A6 e-tron Avant: Key differences
C-Class EQ
Costs and Efficiency:
Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
Audi A6 e-tron Avant is marginally cheaper – starting at 55,200 £ , while the Mercedes C-Class EQ costs 58,000 £ . That’s a price difference of around 2,796 £.
In terms of energy consumption, the Mercedes C-Class EQ is only slightly more efficient: consuming 14.3 kWh/100km compared to 14.8 kWh/100km for the Audi A6 e-tron Avant. That’s a difference of about 0.5 kWh/100km.
As for electric range, the Mercedes C-Class EQ offers only slightly more range – reaching up to 753 km, about 37 km more than the Audi A6 e-tron Avant.
A6 e-tron Avant
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 e-tron Avant offers slightly more power – delivering 551 HP compared to 489 HP. That’s roughly 62 HP more horsepower.
When accelerating from 0 to 100 km/h, the Audi A6 e-tron Avant is marginally quicker – completing the sprint in 3.9 s, while the Mercedes C-Class EQ takes 4 s. That’s about 0.1 s quicker.
There’s also a difference in torque: the Audi A6 e-tron Avant delivers very slightly more torque with 855 Nm compared to 800 Nm. That’s about 55 Nm more.
C-Class EQ
Space and Everyday Use:
Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.
Both vehicles offer seating for 5 people.
In terms of curb weight, Audi A6 e-tron Avant is a bit lighter – 2,185 kg compared to 2,460 kg. The difference is around 275 kg.
Looking at boot space, the Audi A6 e-tron Avant offers marginally more boot space – 502 L compared to 470 L. That’s a difference of about 32 L.
When it comes to payload, the Mercedes C-Class EQ carries only slightly more – 505 kg compared to 500 kg. That’s a difference of about 5 kg.
Who wins the race in the data check?
The Audi A6 e-tron Avant comes out clearly ahead 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 £55,200
Audi A6 e-tron Avant
Mercedes C-Class EQ
Audi A6 e-tron Avant
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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Mercedes C-Class EQ
The Mercedes C‑Class EQ blends the familiar poise and luxury of the C‑Class with Mercedes' EQ electric ethos, delivering a quietly refined and modern driving experience. Inside, it pairs upscale materials and tech-forward touches with a composed ride that suits both city commuting and longer journeys.
details
Audi A6 e-tron Avant
The Audi A6 e-tron Avant wraps Audi's trademark refinement into a sleek electric estate that looks at home in the city or on the open road. Inside it's grown-up and tech-forward with practical packaging for family life, delivering a composed, confident drive that makes everyday hauling feel a bit more special and slightly futuristic.
details
Mercedes C-Class EQ
Audi A6 e-tron Avant
Costs and Consumption |
|
|---|---|
|
Price
58,000 - 67,600 £
|
Price
55,200 - 100,100 £
|
|
Consumption L/100km
-
|
Consumption L/100km
-
|
|
Consumption kWh/100km
14.3 - 15.6 kWh/100km
|
Consumption kWh/100km
14.8 - 17 kWh/100km
|
|
Electric Range
706 - 753 km
|
Electric Range
539 - 716 km
|
|
Battery Capacity
-
|
Battery Capacity
75.8 - 94.9 kWh
|
|
co2
0 g/km
|
co2
0 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
Sedan
|
Body Type
Estate
|
|
Seats
5
|
Seats
5
|
|
Doors
-
|
Doors
5
|
|
Curb weight
2,460 kg
|
Curb weight
2,185 - 2,410 kg
|
|
Trunk capacity
470 L
|
Trunk capacity
502 L
|
|
Length
-
|
Length
4,928 mm
|
|
Width
1,892 mm
|
Width
1,923 mm
|
|
Height
-
|
Height
1,504 - 1,527 mm
|
|
Max trunk capacity
-
|
Max trunk capacity
1,422 L
|
|
Payload
505 kg
|
Payload
470 - 500 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric
|
Engine Type
Electric
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Reduction Gearbox
|
Transmission Detail
Reduction Gearbox
|
|
Drive Type
All-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
489 HP
|
Power HP
326 - 551 HP
|
|
Acceleration 0-100km/h
4 s
|
Acceleration 0-100km/h
3.9 - 6 s
|
|
Max Speed
-
|
Max Speed
210 - 240 km/h
|
|
Torque
800 Nm
|
Torque
435 - 855 Nm
|
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Number of Cylinders
-
|
Number of Cylinders
-
|
|
Power kW
360 kW
|
Power kW
240 - 405 kW
|
|
Engine capacity
-
|
Engine capacity
-
|
General |
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|---|---|
|
Model Year
2026
|
Model Year
2024
|
|
CO2 Efficiency Class
A
|
CO2 Efficiency Class
A
|
|
Brand
Mercedes-Benz
|
Brand
Audi
|
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.