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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 (53800 £ vs 39600 £ ) 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

  • clearly perceptible more power
  • clearly perceptible quicker from 0–100 km/h
  • a bit more trunk space

Mercedes CLA Coupe

4.8 (2 Reviews)
rate
  • noticeable cheaper
  • somewhat more efficient
  • slight more electric range
  • clearly perceptible lighter

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

A6 e-tron Sportback

Costs and Efficiency:

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

Mercedes CLA Coupe has a noticeable advantage in terms of price – it starts at 39600 £ , while the Audi A6 e-tron Sportback costs 53800 £ . That’s a price difference of around 14192 £.

In terms of energy consumption, the advantage goes to the Mercedes CLA Coupe: with 12.20 kWh per 100 km, it’s somewhat more efficient than the Audi A6 e-tron Sportback with 13.70 kWh. That’s a difference of about 1.50 kWh.

As for electric range, the Mercedes CLA Coupe performs slight better – achieving up to 791 km, about 37 km more than the Audi A6 e-tron Sportback.

CLA Coupe

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 Sportback has a clearly perceptible edge – offering 551 HP compared to 354 HP. That’s roughly 197 HP more horsepower.

In acceleration from 0 to 100 km/h, the Audi A6 e-tron Sportback is clearly perceptible quicker – completing the sprint in 3.90 s, while the Mercedes CLA Coupe takes 4.90 s. That’s about 1 s faster.

In terms of top speed, the Audi A6 e-tron Sportback performs somewhat better – reaching 240 km/h, while the Mercedes CLA Coupe tops out at 210 km/h. The difference is around 30 km/h.

There’s also a difference in torque: Audi A6 e-tron Sportback pulls clearly perceptible stronger with 855 Nm compared to 515 Nm. That’s about 340 Nm difference.

A6 e-tron Sportback

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In curb weight, Mercedes CLA Coupe is clearly perceptible lighter – 1695 kg compared to 2175 kg. The difference is around 480 kg.

In terms of boot space, the Audi A6 e-tron Sportback offers a bit more room – 502 L compared to 405 L. That’s a difference of about 97 L.

When it comes to payload, Audi A6 e-tron Sportback slight takes the win – 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 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.

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
from about £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
  • Electric Range : 572 - 754 km
details

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

Mercedes CLA Coupe

4.8 (2 Reviews)
rate

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 Audi A6 e-tron Sportback

Reviews Mercedes CLA Coupe

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

Auto con una linea unica, la short brake finalmente ha un retro sportivo e un bagagliaio capiente

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
Audi A6 e-tron Sportback
Mercedes CLA Coupe

Costs and Consumption
Price
53800 - 98700 £
Price
39600 - 59300 £
Consumption L/100km
-
Consumption L/100km
4.9 - 5.3 L
Consumption kWh/100km
13.7 - 16.3 kWh
Consumption kWh/100km
12.2 - 12.6 kWh
Electric Range
572 - 754 km
Electric Range
541 - 791 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
58 kWh
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
4
Curb weight
2175 - 2400 kg
Curb weight
1695 - 2135 kg
Trunk capacity
502 L
Trunk capacity
405 L
Length
4928 mm
Length
4723 mm
Width
1923 mm
Width
1855 mm
Height
1465 - 1487 mm
Height
1468 mm
Max trunk capacity
1330 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
210 km/h
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
1499 cm3

General
Model Year
2024
Model Year
2025 - 2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, C, D
Brand
Audi
Brand
Mercedes-Benz

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What drivetrain options does the Audi A6 e-tron Sportback have?

The Audi A6 e-tron Sportback 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.