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Audi A6 e-tron Sportback vs Kia Stonic comparison

Compare performance (551 HP vs 115 HP), boot space and price (53,800 £ vs 20,400 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Sportback or Kia Stonic?

Audi A6 e-tron Sportback vs Kia Stonic: Key differences

Audi A6 e-tron Sportback

4.3 (3 Reviews)
rate
  • clearly more power
  • considerably quicker 0–100 km/h
  • markedly more trunk space
details

Kia Stonic

4.6 (2 Reviews)
rate
  • clearly cheaper
  • considerably lighter
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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.

Kia Stonic is clearly cheaper – starting at 20,400 £ , while the Audi A6 e-tron Sportback costs 53,800 £ . That’s a price difference of around 33,437 £.

Stonic

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 offers clearly more power – delivering 551 HP compared to 115 HP. That’s roughly 436 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A6 e-tron Sportback is considerably quicker – completing the sprint in 3.9 s, while the Kia Stonic takes 10.7 s. That’s about 6.8 s quicker.

There’s also a difference in torque: the Audi A6 e-tron Sportback delivers significantly more torque with 855 Nm compared to 200 Nm. That’s about 655 Nm more.

A6 e-tron Sportback

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, Kia Stonic is considerably lighter – 1,205 kg compared to 2,175 kg. The difference is around 970 kg.

Looking at boot space, the Audi A6 e-tron Sportback offers markedly more boot space – 502 L compared to 352 L. That’s a difference of about 150 L.

When it comes to payload, the Audi A6 e-tron Sportback carries moderately more – 500 kg compared to 445 kg. That’s a difference of about 55 kg.

Who wins the race in the data check?

The Audi A6 e-tron Sportback stands well ahead of its rival 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

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

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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.

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Reviews Audi A6 e-tron Sportback

4.3 (3 Reviews)
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Mark
9 May 2026, 14:15:42

Audi much better quality than Tesla

How do you mainly use this car? (optional): Company car / Business
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Michael
7 May 2026, 12:09:31

Wonderful car very confortable and smooth driving

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

Kia Stonic

The Kia Stonic is a compact crossover that pairs nimble city manners with a surprisingly spacious and comfortable cabin. It’s a practical, well-equipped choice for buyers who value sensible features, approachable styling and easy everyday usability.

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Kia_Stonic_MY22_16
Kia_Stonic_MY22_15
Kia_Stonic_MY22_08
Kia_Stonic_MJ22_05

Reviews Kia Stonic

4.6 (2 Reviews)
rate
Jan
18 Mar 2026, 07:19:10

Very good car, uses little fuel, nothing's gone wrong in 4 years, no breakdowns.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
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Value for Money
Ennio
4 Feb 2026, 13:19:36

I'm very satisfied — I have a Stonic Black Edition hybrid, and I haven't had any problems after two years.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
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Audi A6 e-tron Sportback
Kia Stonic

Costs and Consumption
Price
53,800 - 98,700 £
Price
20,400 - 26,800 £
Consumption L/100km
-
Consumption L/100km
5.6 - 5.7 L/100km
Consumption kWh/100km
13.7 - 16.3 kWh/100km
Consumption kWh/100km
-
Electric Range
572 - 754 km
Electric Range
-
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
-
co2
0 g/km
co2
126 - 128 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
2,175 - 2,400 kg
Curb weight
1,205 - 1,270 kg
Trunk capacity
502 L
Trunk capacity
352 L
Length
4,928 mm
Length
-
Width
1,923 mm
Width
1,760 mm
Height
1,465 - 1,487 mm
Height
-
Max trunk capacity
1,330 L
Max trunk capacity
-
Payload
470 - 500 kg
Payload
440 - 445 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol, Petrol MHEV
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
326 - 551 HP
Power HP
100 - 115 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
10.7 - 12.1 s
Max Speed
210 - 240 km/h
Max Speed
-
Torque
435 - 855 Nm
Torque
172 - 200 Nm
Number of Cylinders
-
Number of Cylinders
3
Power kW
240 - 405 kW
Power kW
74 - 85 kW
Engine capacity
-
Engine capacity
998 cm3

General
Model Year
2024
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
D
Brand
Audi
Brand
Kia
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.