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Audi A6 e-tron Avant vs Mercedes S Class comparison

Compare performance (551 HP vs 635 HP), boot space and price (55,200 £ vs 104,000 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Avant or Mercedes S Class?

Audi A6 e-tron Avant vs Mercedes S Class: Key differences

Audi A6 e-tron Avant

3.4 (3 Reviews)
rate
  • substantially cheaper
  • clearly more electric range
  • very slightly quicker 0–100 km/h
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Mercedes S Class

  • moderately more power
  • very slightly lighter
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By Achim Sedelmaier

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

A6 e-tron Avant

Costs and Efficiency:

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

Audi A6 e-tron Avant is substantially cheaper – starting at 55,200 £ , while the Mercedes S Class costs 104,000 £ . That’s a price difference of around 48,777 £.

As for electric range, the Audi A6 e-tron Avant offers clearly more range – reaching up to 716 km, about 598 km more than the Mercedes S Class.

S Class

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 Mercedes S Class offers moderately more power – delivering 635 HP compared to 551 HP. That’s roughly 84 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A6 e-tron Avant is very slightly quicker – completing the sprint in 3.9 s, while the Mercedes S Class 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 850 Nm. That’s about 5 Nm more.

A6 e-tron Avant

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, Mercedes S Class is very slightly lighter – 2,165 kg compared to 2,185 kg. The difference is around 20 kg.

When it comes to payload, the Mercedes S Class carries noticeably more – 660 kg compared to 500 kg. That’s a difference of about 160 kg.

Who wins the race in the data check?

The Audi A6 e-tron Avant is decisively 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
A6 e-tron Avant

Audi A6 e-tron Avant

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 326 - 551 HP
  • Consumption kWh/100km : 14.8 - 17 kWh/100km
  • Electric Range : 539 - 716 km
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Frequently compared as well

Audi A6 e-tron Avant
BMW i4
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The Audi A6 e-tron Avant and the BMW i4 offer two distinct visions of electric driving: the A6 Avant pairs estate practicality and advanced tech with a premium, understated presence, while the i4 delivers a sportier, more driver-focused experience in a sleek four-door coupe-sedan. This comparison …
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BMW iX3
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Audi A6 e-tron Avant
Mercedes S Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

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Reviews Audi A6 e-tron Avant

3.4 (3 Reviews)
rate

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Mercedes S Class

The 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.

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21C0613_043

Reviews Mercedes S Class

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Frequently compared as well

Audi A6 e-tron Avant
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The Audi A6 Avant e-tron and the Mercedes CLA Shooting Brake represent two different takes on stylish, practical estates — the A6 Avant e-tron as a sleek electric tourer and the CLA Shooting Brake as a sporty, design‑led hatchback. This comparison will help you decide which one fits your priorities …
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Audi Q6 e-tron
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Mercedes S Class
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Audi A6 e-tron Avant
Mercedes S Class

Costs and Consumption
Price
55,200 - 100,100 £
Price
104,000 - 201,400 £
Consumption L/100km
-
Consumption L/100km
2.2 - 11 L/100km
Consumption kWh/100km
14.8 - 17 kWh/100km
Consumption kWh/100km
-
Electric Range
539 - 716 km
Electric Range
98 - 118 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
-
co2
0 g/km
co2
50 - 252 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
Sedan
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
2,185 - 2,410 kg
Curb weight
2,165 - 2,650 kg
Trunk capacity
502 L
Trunk capacity
-
Length
4,928 mm
Length
-
Width
1,923 mm
Width
1,921 mm
Height
1,504 - 1,527 mm
Height
-
Max trunk capacity
1,422 L
Max trunk capacity
-
Payload
470 - 500 kg
Payload
420 - 660 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
326 - 551 HP
Power HP
336 - 635 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
4 - 5.7 s
Max Speed
210 - 240 km/h
Max Speed
-
Torque
435 - 855 Nm
Torque
560 - 850 Nm
Number of Cylinders
-
Number of Cylinders
6 - 8
Power kW
240 - 405 kW
Power kW
247 - 467 kW
Engine capacity
-
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2024
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
G, B, F
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi A6 e-tron Avant have?

The Audi A6 e-tron Avant is available as 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.