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Audi A6 e-tron Avant vs Mercedes S Class comparison

Compare performance (551 HP vs 585 HP), boot space and price (55200 £ vs 104000 £ ) 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
  • decisively cheaper
  • convincingly more electric range
  • minimal quicker from 0–100 km/h

Mercedes S Class

  • hardly perceptible more power
  • hardly perceptible lighter

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

A6 e-tron Avant

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Audi A6 e-tron Avant has a decisively advantage in terms of price – it starts at 55200 £ , while the Mercedes S Class costs 104000 £ . That’s a price difference of around 48777 £.

As for electric range, the Audi A6 e-tron Avant performs convincingly better – achieving up to 716 km, about 598 km more than the Mercedes S Class.

S Class

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 Mercedes S Class has a hardly perceptible edge – offering 585 HP compared to 551 HP. That’s roughly 34 HP more horsepower.

In acceleration from 0 to 100 km/h, the Audi A6 e-tron Avant is minimal quicker – completing the sprint in 3.90 s, while the Mercedes S Class takes 4 s. That’s about 0.10 s faster.

There’s also a difference in torque: Audi A6 e-tron Avant pulls somewhat stronger with 855 Nm compared to 750 Nm. That’s about 105 Nm difference.

A6 e-tron Avant

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, Mercedes S Class is hardly perceptible lighter – 2165 kg compared to 2185 kg. The difference is around 20 kg.

When it comes to payload, Mercedes S Class noticeable takes the win – 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 holds a decisive overall lead 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

Audi A6 e-tron Avant
VW ID.7 Touring
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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
from about £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
  • Electric Range : 539 - 716 km
details

Audi A6 e-tron Avant

3.4 (3 Reviews)
rate

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
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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.

details
21C0428_003
21C0428_004
21C0613_021
21C0613_037
21C0613_042
21C0613_043

Reviews Audi A6 e-tron Avant

3.4 (3 Reviews)
rate

Reviews Mercedes S Class

Audi A6 e-tron Avant
Mercedes S Class

Costs and Consumption
Price
55200 - 100100 £
Price
104000 - 139100 £
Consumption L/100km
-
Consumption L/100km
2.2 - 10.6 L
Consumption kWh/100km
14.8 - 17 kWh
Consumption kWh/100km
-
Electric Range
539 - 716 km
Electric Range
102 - 118 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
-
co2
0 g/km
co2
50 - 241 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
2185 - 2410 kg
Curb weight
2165 - 2515 kg
Trunk capacity
502 L
Trunk capacity
-
Length
4928 mm
Length
-
Width
1923 mm
Width
1921 mm
Height
1504 - 1527 mm
Height
-
Max trunk capacity
1422 L
Max trunk capacity
-
Payload
470 - 500 kg
Payload
555 - 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 - 585 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 - 750 Nm
Number of Cylinders
-
Number of Cylinders
6 - 8
Power kW
240 - 405 kW
Power kW
247 - 430 kW
Engine capacity
-
Engine capacity
2989 - 3982 cm3

General
Model Year
2024
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
G, B, F
Brand
Audi
Brand
Mercedes-Benz

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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.

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.