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Audi Q8 vs BMW 8 Series Convertible comparison

Compare performance (640 HP vs 625 HP), boot space and price (77,300 £ vs 99,400 £ ) at a glance. Find out which car is the better choice for you – Audi Q8 or BMW 8 Series Convertible?

Audi Q8 vs BMW 8 Series Convertible: Key differences

Audi Q8

  • clearly cheaper
  • marginally more power
  • significantly more efficient
  • considerably more trunk space
details

BMW 8 Series Convertible

  • barely quicker 0–100 km/h
  • moderately lighter
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By Achim Sedelmaier

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

Q8

Costs and Efficiency:

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

Audi Q8 is clearly cheaper – starting at 77,300 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 22,114 £.

Fuel consumption also shows a difference: the Audi Q8 uses 3.9 L/100km and is significantly more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 3 L/100km.

8 Series Convertible

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Audi Q8 offers marginally more power – delivering 640 HP compared to 625 HP. That’s roughly 15 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is barely quicker – completing the sprint in 3.3 s, while the Audi Q8 takes 3.6 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Audi Q8 delivers a bit more torque with 850 Nm compared to 750 Nm. That’s about 100 Nm more.

Q8

Space and Everyday Use:

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

Seats: Audi Q8 offers more seats – 5 vs 4.

In terms of curb weight, BMW 8 Series Convertible is moderately lighter – 1,915 kg compared to 2,175 kg. The difference is around 260 kg.

Looking at boot space, the Audi Q8 offers considerably more boot space – 605 L compared to 350 L. That’s a difference of about 255 L.

When it comes to payload, the Audi Q8 carries clearly more – 665 kg compared to 425 kg. That’s a difference of about 240 kg.

Who wins the race in the data check?

The Audi Q8 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 £77,300
Q8

Audi Q8

  • Engine Type : Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 231 - 640 HP
  • Consumption L/100km : 3.9 - 13.1 L/100km
  • Electric Range : 80 km
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BMW 8 Series Convertible

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi Q8

The Audi Q8 wraps coupe-like flair around a burly SUV stance, serving up a cabin dressed in premium materials and smart tech that puts comfort and swagger front and center. It’s composed and comfortable on long runs yet happy to play when asked, making it a tempting choice for buyers who want head-turning looks without surrendering everyday practicality.

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Reviews Audi Q8

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

BMW 8 Series Convertible

The BMW 8 Series Convertible is a head-turning grand tourer that drops its roof with the kind of theatrical flourish you expect from a modern Bavarian showboat. It wraps occupants in sumptuous materials and driver-focused polish, offering effortless long-distance comfort and just enough drama to make every arrival feel like an occasion.

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Reviews BMW 8 Series Convertible

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Audi Q8
BMW 8 Series Convertible

Costs and Consumption
Price
77,300 - 137,100 £
Price
99,400 - 165,800 £
Consumption L/100km
3.9 - 13.1 L/100km
Consumption L/100km
6.9 - 11.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
80 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
88 - 297 g/km
co2
180 - 255 g/km
Fuel tank capacity
-
Fuel tank capacity
66 - 68 L

Dimensions and Body
Body Type
SUV
Body Type
Convertible
Seats
5
Seats
4
Doors
-
Doors
2
Curb weight
2,175 - 2,490 kg
Curb weight
1,915 - 2,125 kg
Trunk capacity
439 - 605 L
Trunk capacity
350 L
Length
-
Length
4,851 - 4,867 mm
Width
1,995 - 2,007 mm
Width
1,902 - 1,907 mm
Height
-
Height
1,345 - 1,353 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
620 - 665 kg
Payload
340 - 425 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
Engine Type
Diesel MHEV, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
231 - 640 HP
Power HP
333 - 625 HP
Acceleration 0-100km/h
3.6 - 7.1 s
Acceleration 0-100km/h
3.3 - 5.5 s
Max Speed
-
Max Speed
250 km/h
Torque
500 - 850 Nm
Torque
500 - 750 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
170 - 471 kW
Power kW
245 - 460 kW
Engine capacity
2,967 - 3,996 cm3
Engine capacity
2,993 - 4,395 cm3

General
Model Year
2025
Model Year
2024
CO2 Efficiency Class
G, B
CO2 Efficiency Class
G
Brand
Audi
Brand
BMW
What drivetrain options does the Audi Q8 have?

Available configurations include 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.