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BMW 8 Series Convertible vs Audi Q7 comparison

Compare performance (625 HP vs 507 HP), boot space and price (99,400 £ vs 70,600 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Audi Q7?

BMW 8 Series Convertible vs Audi Q7: Key differences

BMW 8 Series Convertible

  • a bit more power
  • clearly quicker 0–100 km/h
  • only slightly lighter
details

Audi Q7

4.5 (2 Reviews)
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  • substantially cheaper
  • substantially more efficient
  • substantially more trunk space
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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

8 Series Convertible

Costs and Efficiency:

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

Audi Q7 is substantially cheaper – starting at 70,600 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 28,800 £.

Fuel consumption also shows a difference: the Audi Q7 uses 3.8 L/100km and is substantially more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 3.1 L/100km.

Q7

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 BMW 8 Series Convertible offers a bit more power – delivering 625 HP compared to 507 HP. That’s roughly 118 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is clearly quicker – completing the sprint in 3.3 s, while the Audi Q7 takes 4.1 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the Audi Q7 delivers very slightly more torque with 770 Nm compared to 750 Nm. That’s about 20 Nm more.

8 Series Convertible

Space and Everyday Use:

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

Seats: Audi Q7 offers more seats – 7 vs 4.

In terms of curb weight, BMW 8 Series Convertible is only slightly lighter – 1,915 kg compared to 2,055 kg. The difference is around 140 kg.

Looking at boot space, the Audi Q7 offers substantially more boot space – 887 L compared to 350 L. That’s a difference of about 537 L.

When it comes to payload, the Audi Q7 carries clearly more – 885 kg compared to 425 kg. That’s a difference of about 460 kg.

Who wins the race in the data check?

The Audi Q7 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 £70,600
Q7

Audi Q7

  • Engine Type Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 231 - 507 HP
  • Consumption L/100km 3.8 - 11.9 L/100km
  • Electric Range 81 - 82 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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

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

Audi Q7

The Audi Q7 cuts an imposing figure on the road, balancing restrained luxury with a spacious, tech-rich cabin that makes long journeys feel effortless. It rides with confident composure and polished manners, so if you want a premium family SUV that feels grown-up and worth the badge, the Q7 is a persuasive choice — even the in-laws will be impressed.

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Reviews Audi Q7

4.5 (2 Reviews)
rate
A.B.
24 Mar 2026, 11:45:19

Constant faults with the touch door opening, the trunk, sign-reading and the front obstacle sensors. The service repaired it under warranty five times — they replaced wiring harnesses, a sensor, uploaded software — and then gave up. They told me they don’t know what else to do. That’s the customer care at a German premium brand. A car worth over 400,000 and they tell the customer they don’t know what to do. I paid the final installment and I’m giving the car back to them. I’m taking a Chinese BYD Seal U DM-i plug-in hybrid with better equipment for 165k after a discount from 225k. With that attitude to customers and those high prices, the Germans will have fewer and fewer people interested in their cars — but they’ve only got themselves to blame!!!

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

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BMW 8 Series Convertible
Audi Q7

Costs and Consumption
Price
99,400 - 165,800 £
Price
70,600 - 100,600 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
3.8 - 11.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
81 - 82 km
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
86 - 271 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
SUV
Seats
4
Seats
5 - 7
Doors
2
Doors
-
Curb weight
1,915 - 2,125 kg
Curb weight
2,055 - 2,460 kg
Trunk capacity
350 L
Trunk capacity
563 - 887 L
Length
4,851 - 4,867 mm
Length
-
Width
1,902 - 1,907 mm
Width
1,970 mm
Height
1,345 - 1,353 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
640 - 885 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
333 - 625 HP
Power HP
231 - 507 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
4.1 - 7.1 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
500 - 770 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
245 - 460 kW
Power kW
170 - 373 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
2,967 - 3,996 cm3

General
Model Year
2024
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
G, B
Brand
BMW
Brand
Audi
What drivetrain options does the BMW 8 Series Convertible have?

Available configurations include All-Wheel Drive or Rear-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.