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Audi A5 Avant vs BMW 8 Series Convertible comparison

Compare performance (639 HP vs 625 HP), boot space and price (41,600 £ vs 99,400 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Avant or BMW 8 Series Convertible?

Audi A5 Avant vs BMW 8 Series Convertible: Key differences

Audi A5 Avant

4.4 (1 Reviews)
rate
  • significantly cheaper
  • barely more power
  • considerably more efficient
  • only slightly lighter
  • only slightly more trunk space
details

BMW 8 Series Convertible

  • a bit quicker 0–100 km/h
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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

A5 Avant

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Audi A5 Avant is significantly cheaper – starting at 41,600 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 57,814 £.

Fuel consumption also shows a difference: the Audi A5 Avant uses 2.1 L/100km and is considerably more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 4.8 L/100km.

8 Series Convertible

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 A5 Avant offers barely more power – delivering 639 HP compared to 625 HP. That’s roughly 14 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is a bit quicker – completing the sprint in 3.3 s, while the Audi A5 Avant takes 3.7 s. That’s about 0.4 s quicker.

There’s also a difference in torque: the Audi A5 Avant delivers marginally more torque with 825 Nm compared to 750 Nm. That’s about 75 Nm more.

A5 Avant

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 A5 Avant offers more seats – 5 vs 4.

In terms of curb weight, Audi A5 Avant is only slightly lighter – 1,785 kg compared to 1,915 kg. The difference is around 130 kg.

Looking at boot space, the Audi A5 Avant offers only slightly more boot space – 361 L compared to 350 L. That’s a difference of about 11 L.

When it comes to payload, the Audi A5 Avant carries visibly more – 535 kg compared to 425 kg. That’s a difference of about 110 kg.

Who wins the race in the data check?

The Audi A5 Avant is clearly superior overall 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 £41,600
A5 Avant

Audi A5 Avant

  • Engine Type Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Front-Wheel Drive
  • Power HP 150 - 639 HP
  • Consumption L/100km 2.1 - 7.7 L/100km
  • Electric Range 83 - 108 km
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Frequently compared as well

Audi A5 Avant
Audi A6 Avant
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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 A5 Avant

The Audi A5 Avant dresses like a sleek coupe but carries like a sensible estate, offering buyers a rare blend of glamour and everyday practicality. Inside, the cabin feels beautifully sorted and the drive is composed and engaging, making routine errands feel a touch more enjoyable than they have any right to be.

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Reviews Audi A5 Avant

4.4 (1 Reviews)
rate
Hje
10 May 2026, 10:01:51

I do a lot of highway and generally long distance driving where A5 is superior to BMW 3.

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

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.

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BMW 8 Series Convertible

Costs and Consumption
Price
41,600 - 92,400 £
Price
99,400 - 165,800 £
Consumption L/100km
2.1 - 7.7 L/100km
Consumption L/100km
6.9 - 11.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
83 - 108 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
47 - 175 g/km
co2
180 - 255 g/km
Fuel tank capacity
-
Fuel tank capacity
66 - 68 L

Dimensions and Body
Body Type
Estate
Body Type
Convertible
Seats
5
Seats
4
Doors
-
Doors
2
Curb weight
1,785 - 2,445 kg
Curb weight
1,915 - 2,125 kg
Trunk capacity
361 L
Trunk capacity
350 L
Length
-
Length
4,851 - 4,867 mm
Width
1,860 - 1,952 mm
Width
1,902 - 1,907 mm
Height
-
Height
1,345 - 1,353 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 kg
Payload
340 - 425 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Diesel MHEV, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
150 - 639 HP
Power HP
333 - 625 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
3.3 - 5.5 s
Max Speed
-
Max Speed
250 km/h
Torque
280 - 825 Nm
Torque
500 - 750 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6 - 8
Power kW
110 - 470 kW
Power kW
245 - 460 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
2,993 - 4,395 cm3

General
Model Year
2,025 - 2,026
Model Year
2024
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
G
Brand
Audi
Brand
BMW
What drive types are available for the Audi A5 Avant?

Available configurations include All-Wheel Drive or Front-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.