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Audi A6 e-tron Sportback vs Mercedes CLA Coupe comparison

Compare performance (551 HP vs 354 HP), boot space and price (53,800 £ vs 39,600 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Sportback or Mercedes CLA Coupe?

Audi A6 e-tron Sportback vs Mercedes CLA Coupe: Key differences

Audi A6 e-tron Sportback

  • markedly more power
  • clearly quicker 0–100 km/h
  • slightly more trunk space
details

Mercedes CLA Coupe

4.8 (2 Reviews)
rate
  • clearly cheaper
  • a bit more efficient
  • very slightly more electric range
  • markedly lighter
details

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

A6 e-tron Sportback

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mercedes CLA Coupe is clearly cheaper – starting at 39,600 £ , while the Audi A6 e-tron Sportback costs 53,800 £ . That’s a price difference of around 14,192 £.

In terms of energy consumption, the Mercedes CLA Coupe is a bit more efficient: consuming 12.2 kWh/100km compared to 13.7 kWh/100km for the Audi A6 e-tron Sportback. That’s a difference of about 1.5 kWh/100km.

As for electric range, the Mercedes CLA Coupe offers very slightly more range – reaching up to 791 km, about 37 km more than the Audi A6 e-tron Sportback.

CLA Coupe

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 Audi A6 e-tron Sportback offers markedly more power – delivering 551 HP compared to 354 HP. That’s roughly 197 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A6 e-tron Sportback is clearly quicker – completing the sprint in 3.9 s, while the Mercedes CLA Coupe takes 4.9 s. That’s about 1 s quicker.

There’s also a difference in torque: the Audi A6 e-tron Sportback delivers noticeably more torque with 855 Nm compared to 515 Nm. That’s about 340 Nm more.

A6 e-tron Sportback

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 CLA Coupe is markedly lighter – 1,695 kg compared to 2,175 kg. The difference is around 480 kg.

Looking at boot space, the Audi A6 e-tron Sportback offers slightly more boot space – 502 L compared to 405 L. That’s a difference of about 97 L.

When it comes to payload, the Audi A6 e-tron Sportback carries marginally more – 500 kg compared to 455 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The Audi A6 e-tron Sportback is clearly superior 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 £53,800
A6 e-tron Sportback

Audi A6 e-tron Sportback

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 326 - 551 HP
  • Consumption kWh/100km : 13.7 - 16.3 kWh/100km
  • Electric Range : 572 - 754 km
details

Frequently compared as well

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Audi A6 e-tron Sportback
Mercedes CLA Coupe

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A6 e-tron Sportback

The Audi A6 e-tron Sportback wraps futuristic electric technology in elegant, coupe-like proportions, so you arrive looking sharp without shouting for attention. Inside, refined materials and a calm, driver-focused layout make it a convincing choice for buyers who want quiet, effortless performance with a dash of everyday practicality — the kind of car that raises eyebrows without saying a word.

details
A244494_medium
A244492_medium
A243215_medium

Reviews Audi A6 e-tron Sportback

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

Mercedes CLA Coupe

The Mercedes CLA Coupe cuts a rakish silhouette that blends sporty coupe lines with everyday practicality, giving style-minded buyers a premium image without shouting. Inside it feels more luxurious than its size suggests, with a slick cabin, intuitive tech and a composed ride — the kind of car that parties in the city and still shows up polished on Sunday morning.

details
19C0225_069
19C0225_068
19C0225_067
19C0225_044

Reviews Mercedes CLA Coupe

4.8 (2 Reviews)
rate
marco
12 Mar 2026, 18:44:45

A car with a unique line — the shooting brake finally gets a sporty rear and a roomy trunk.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Dejf
18 Dec 2025, 14:59:40

Nice efficient car. Like it

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Audi A6 e-tron Sportback
Mercedes CLA Coupe

Costs and Consumption
Price
53,800 - 98,700 £
Price
39,600 - 59,300 £
Consumption L/100km
-
Consumption L/100km
4.9 - 5.3 L/100km
Consumption kWh/100km
13.7 - 16.3 kWh/100km
Consumption kWh/100km
12.2 - 12.6 kWh/100km
Electric Range
572 - 754 km
Electric Range
542 - 791 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
-
co2
0 g/km
co2
0 - 120 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Coupe
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
2,175 - 2,400 kg
Curb weight
1,695 - 2,135 kg
Trunk capacity
502 L
Trunk capacity
405 L
Length
4,928 mm
Length
-
Width
1,923 mm
Width
1,855 mm
Height
1,465 - 1,487 mm
Height
-
Max trunk capacity
1,330 L
Max trunk capacity
-
Payload
470 - 500 kg
Payload
430 - 455 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric, Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive, Front-Wheel Drive
Power HP
326 - 551 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
4.9 - 8.8 s
Max Speed
210 - 240 km/h
Max Speed
-
Torque
435 - 855 Nm
Torque
280 - 515 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
240 - 405 kW
Power kW
115 - 260 kW
Engine capacity
-
Engine capacity
1,499 cm3

General
Model Year
2024
Model Year
2,025 - 2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, C, D
Brand
Audi
Brand
Mercedes-Benz
Is the Audi A6 e-tron Sportback offered with different drivetrains?

The Audi A6 e-tron Sportback 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.