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Audi Q8 vs Porsche Cayman – Which one offers the better deal?

Everyday use, family trips or long-distance drives – here’s where the differences show.
Discover whether Audi Q8 or Porsche Cayman fits your lifestyle better.

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

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 Q8 has a clearly advantage in terms of price – it starts at 75800 £, while the Porsche Cayman costs 136000 £. That’s a price difference of around 60257 £.

Fuel consumption also shows a difference: Audi Q8 manages with 1.30 L and is therefore decisively more efficient than the Porsche Cayman with 13 L. The difference is about 11.70 L per 100 km.

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 Q8 has a noticeable edge – offering 640 HP compared to 500 HP. That’s roughly 140 HP more horsepower.

In acceleration from 0 to 100 km/h, the Porsche Cayman is slight quicker – completing the sprint in 3.40 s, while the Audi Q8 takes 3.60 s. That’s about 0.20 s faster.

In terms of top speed, the Porsche Cayman performs evident better – reaching 315 km/h, while the Audi Q8 tops out at 250 km/h. The difference is around 65 km/h.

There’s also a difference in torque: Audi Q8 pulls significantly stronger with 850 Nm compared to 450 Nm. That’s about 400 Nm difference.

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 Q8 offers significantly more seating capacity – 5 vs 2.

In curb weight, Porsche Cayman is clearly lighter – 1490 kg compared to 2175 kg. The difference is around 685 kg.

In terms of boot space, the Audi Q8 offers significantly more room – 605 L compared to 184 L. That’s a difference of about 421 L.

In maximum load capacity, the Audi Q8 performs clearly better – up to 1755 L, which is about 1483 L more than the Porsche Cayman.

When it comes to payload, Audi Q8 significantly takes the win – 665 kg compared to 281 kg. That’s a difference of about 384 kg.

Who comes out on top?

Overall, the Audi Q8 shows itself to be is largely superior and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.

from about £75,800
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Audi Q8

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV, Petrol
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 231 - 640 HP
  • Consumption L/100km : 1.3 - 13.1 L
  • Electric Range : 82 - 83 km
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Audi Q8

The Audi Q8 combines luxurious design with advanced technology, offering a sophisticated driving experience. Its sleek exterior is complemented by a spacious and elegantly crafted interior, featuring high-quality materials and cutting-edge infotainment options. The Q8 handles with agility and precision, making it equally suited for city driving and long-distance journeys.

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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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Costs and Consumption
Price
75800 - 135600 £
Price
136000 £
Consumption L/100km
1.3 - 13.1 L
Consumption L/100km
13 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
82 - 83 km
Electric Range
-
Battery Capacity
22 kWh
Battery Capacity
-
co2
30 - 297 g/km
co2
295 g/km
Fuel tank capacity
75 - 85 L
Fuel tank capacity
54 L

Dimensions and Body
Body Type
SUV
Body Type
Coupe
Seats
5
Seats
2
Doors
5
Doors
2
Curb weight
2175 - 2490 kg
Curb weight
1490 kg
Trunk capacity
439 - 605 L
Trunk capacity
184 L
Length
4992 - 5022 mm
Length
4456 mm
Width
1995 - 2007 mm
Width
1822 mm
Height
1697 - 1708 mm
Height
1267 mm
Max trunk capacity
1755 L
Max trunk capacity
272 L
Payload
620 - 665 kg
Payload
281 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV, Petrol
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
231 - 640 HP
Power HP
500 HP
Acceleration 0-100km/h
3.6 - 7.1 s
Acceleration 0-100km/h
3.40 s
Max Speed
226 - 250 km/h
Max Speed
315 km/h
Torque
500 - 850 Nm
Torque
450 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6
Power kW
170 - 471 kW
Power kW
368 kW
Engine capacity
2967 - 3996 cm3
Engine capacity
3996 cm3

General
Model Year
2025
Model Year
2021
CO2 Efficiency Class
G, B
CO2 Efficiency Class
G
Brand
Audi
Brand
Porsche

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What drive types are available for the Audi Q8?

Available configurations include All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.