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BMW 8 Series Convertible vs Audi Q4 e-tron comparison

Compare performance (625 HP vs 340 HP), boot space and price (99,400 £ vs 40,700 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Audi Q4 e-tron?

BMW 8 Series Convertible vs Audi Q4 e-tron: Key differences

BMW 8 Series Convertible

  • considerably more power
  • clearly quicker 0–100 km/h
  • barely lighter
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Audi Q4 e-tron

4.6 (3 Reviews)
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  • substantially cheaper
  • visibly 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:

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 Q4 e-tron is substantially cheaper – starting at 40,700 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 58,714 £.

Q4 e-tron

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 BMW 8 Series Convertible offers considerably more power – delivering 625 HP compared to 340 HP. That’s roughly 285 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 Q4 e-tron takes 5.4 s. That’s about 2.1 s quicker.

There’s also a difference in torque: the BMW 8 Series Convertible delivers very slightly more torque with 750 Nm compared to 679 Nm. That’s about 71 Nm more.

8 Series Convertible

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: Audi Q4 e-tron offers more seats – 5 vs 4.

In terms of curb weight, BMW 8 Series Convertible is barely lighter – 1,915 kg compared to 2,035 kg. The difference is around 120 kg.

Looking at boot space, the Audi Q4 e-tron offers visibly more boot space – 535 L compared to 350 L. That’s a difference of about 185 L.

When it comes to payload, the Audi Q4 e-tron carries moderately more – 515 kg compared to 425 kg. That’s a difference of about 90 kg.

Who wins the race in the data check?

The Audi Q4 e-tron 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 £40,700
Q4 e-tron

Audi Q4 e-tron

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 204 - 340 HP
  • Consumption kWh/100km 14.8 - 16.2 kWh/100km
  • Electric Range 440 - 592 km
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Frequently compared as well

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BMW 8 Series Convertible
Audi Q4 e-tron

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 Q4 e-tron

The Audi Q4 e-tron blends Audi’s clean, modern styling with a practical, well-built interior, making it a refined option for buyers who want a premium electric compact SUV. It offers a quiet, composed ride and intuitive tech, so it’s well suited to daily commuting and family duties while keeping the switch to electric straightforward.

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Reviews Audi Q4 e-tron

4.6 (3 Reviews)
rate
Alain
10 Jun 2026, 00:16:47

A more attractive vehicle inside and out, with German reliability.

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BMW 8 Series Convertible
Audi Q4 e-tron

Costs and Consumption
Price
99,400 - 165,800 £
Price
40,700 - 53,100 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
14.8 - 16.2 kWh/100km
Electric Range
-
Electric Range
440 - 592 km
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
0 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
SUV
Seats
4
Seats
5
Doors
2
Doors
-
Curb weight
1,915 - 2,125 kg
Curb weight
2,035 - 2,235 kg
Trunk capacity
350 L
Trunk capacity
515 - 535 L
Length
4,851 - 4,867 mm
Length
-
Width
1,902 - 1,907 mm
Width
1,865 mm
Height
1,345 - 1,353 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
505 - 515 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
333 - 625 HP
Power HP
204 - 340 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
5.4 - 8.1 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
350 - 679 Nm
Number of Cylinders
6 - 8
Number of Cylinders
-
Power kW
245 - 460 kW
Power kW
150 - 250 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
-

General
Model Year
2024
Model Year
2026
CO2 Efficiency Class
G
CO2 Efficiency Class
A
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.