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Audi A6 e-tron Sportback vs Porsche Cayman comparison

Compare performance (551 HP vs 500 HP), boot space and price (53,800 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Sportback or Porsche Cayman?

Audi A6 e-tron Sportback vs Porsche Cayman: Key differences

Audi A6 e-tron Sportback

4.3 (3 Reviews)
rate
  • significantly cheaper
  • only slightly more power
  • clearly more trunk space
details

Porsche Cayman

  • somewhat quicker 0–100 km/h
  • significantly 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.

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.

Audi A6 e-tron Sportback is significantly cheaper – starting at 53,800 £ , while the Porsche Cayman costs 136,000 £ . That’s a price difference of around 82,200 £.

Cayman

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 only slightly more power – delivering 551 HP compared to 500 HP. That’s roughly 51 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayman is somewhat quicker – completing the sprint in 3.4 s, while the Audi A6 e-tron Sportback takes 3.9 s. That’s about 0.5 s quicker.

Looking at top speed, the Porsche Cayman is noticeably faster – reaching 315 km/h, while the Audi A6 e-tron Sportback tops out at 240 km/h. The difference is around 75 km/h.

There’s also a difference in torque: the Audi A6 e-tron Sportback delivers considerably more torque with 855 Nm compared to 450 Nm. That’s about 405 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.

Seats: Audi A6 e-tron Sportback offers more seats – 5 vs 2.

In terms of curb weight, Porsche Cayman is significantly lighter – 1,490 kg compared to 2,175 kg. The difference is around 685 kg.

Looking at boot space, the Audi A6 e-tron Sportback offers clearly more boot space – 502 L compared to 184 L. That’s a difference of about 318 L.

For maximum load capacity, the Audi A6 e-tron Sportback offers significantly more capacity – up to 1,330 L, about 1,058 L more than the Porsche Cayman.

When it comes to payload, the Audi A6 e-tron Sportback carries considerably more – 500 kg compared to 281 kg. That’s a difference of about 219 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
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Frequently compared as well

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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.

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A244492_medium
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Reviews Audi A6 e-tron Sportback

4.3 (3 Reviews)
rate
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

Porsche Cayman

The Porsche Cayman stands out as a quintessential sports car, blending sleek design with dynamic handling. Its mid-engine layout provides an excellent balance and sharp agility that driving enthusiasts crave. Inside, the Cayman offers a refined and driver-focused interior, ensuring that every journey is an exhilarating experience.

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Reviews Porsche Cayman

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

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Audi A6 e-tron Sportback
Porsche Cayman

Costs and Consumption
Price
53,800 - 98,700 £
Price
136,000 £
Consumption L/100km
-
Consumption L/100km
13 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
295 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Hatchback
Body Type
Coupe
Seats
5
Seats
2
Doors
5
Doors
2
Curb weight
2,175 - 2,400 kg
Curb weight
1,490 kg
Trunk capacity
502 L
Trunk capacity
184 L
Length
4,928 mm
Length
4,456 mm
Width
1,923 mm
Width
1,822 mm
Height
1,465 - 1,487 mm
Height
1,267 mm
Max trunk capacity
1,330 L
Max trunk capacity
272 L
Payload
470 - 500 kg
Payload
281 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
326 - 551 HP
Power HP
500 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
3.4 s
Max Speed
210 - 240 km/h
Max Speed
315 km/h
Torque
435 - 855 Nm
Torque
450 Nm
Number of Cylinders
-
Number of Cylinders
6
Power kW
240 - 405 kW
Power kW
368 kW
Engine capacity
-
Engine capacity
3,996 cm3

General
Model Year
2024
Model Year
2021
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
Audi
Brand
Porsche
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.