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Audi A6 e-tron Avant vs Mercedes SL Class comparison

Compare performance (551 HP vs 816 HP), boot space and price (55,200 £ vs 112,700 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Avant or Mercedes SL Class?

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

Audi A6 e-tron Avant

3.4 (3 Reviews)
rate
  • considerably cheaper
  • significantly more electric range
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Mercedes SL Class

  • noticeably more power
  • noticeably quicker 0–100 km/h
  • noticeably 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:

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 is considerably cheaper – starting at 55,200 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 57,462 £.

As for electric range, the Audi A6 e-tron Avant offers significantly more range – reaching up to 716 km, about 704 km more than the Mercedes SL Class.

SL 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 SL Class offers noticeably more power – delivering 816 HP compared to 551 HP. That’s roughly 265 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is noticeably quicker – completing the sprint in 2.9 s, while the Audi A6 e-tron Avant takes 3.9 s. That’s about 1 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers noticeably more torque with 1,420 Nm compared to 855 Nm. That’s about 565 Nm more.

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.

Seats: Audi A6 e-tron Avant offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is noticeably lighter – 1,810 kg compared to 2,185 kg. The difference is around 375 kg.

When it comes to payload, the Audi A6 e-tron Avant carries visibly more – 500 kg compared to 375 kg. That’s a difference of about 125 kg.

Who wins the race in the data check?

The Audi A6 e-tron 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 £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

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Audi A6 e-tron Avant
Mercedes SL 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

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

Mercedes SL Class

The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.

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15C1119_012
15C1119_029
15C1119_120
15C1119_004

Reviews Mercedes SL Class

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Audi A6 e-tron Avant
Mercedes SL Class

Costs and Consumption
Price
55,200 - 100,100 £
Price
112,700 - 219,300 £
Consumption L/100km
-
Consumption L/100km
9 - 13.6 L/100km
Consumption kWh/100km
14.8 - 17 kWh/100km
Consumption kWh/100km
-
Electric Range
539 - 716 km
Electric Range
12 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
-
co2
0 g/km
co2
206 - 309 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
Roadster
Seats
5
Seats
4
Doors
5
Doors
-
Curb weight
2,185 - 2,410 kg
Curb weight
1,810 - 2,195 kg
Trunk capacity
502 L
Trunk capacity
-
Length
4,928 mm
Length
-
Width
1,923 mm
Width
1,915 mm
Height
1,504 - 1,527 mm
Height
-
Max trunk capacity
1,422 L
Max trunk capacity
-
Payload
470 - 500 kg
Payload
145 - 375 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
326 - 551 HP
Power HP
381 - 816 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
2.9 - 4.9 s
Max Speed
210 - 240 km/h
Max Speed
-
Torque
435 - 855 Nm
Torque
480 - 1,420 Nm
Number of Cylinders
-
Number of Cylinders
4 - 8
Power kW
240 - 405 kW
Power kW
280 - 600 kW
Engine capacity
-
Engine capacity
1,991 - 3,982 cm3

General
Model Year
2024
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
G
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.