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Audi A5 Sportback vs BMW 8 Series Convertible comparison

Compare performance (639 HP vs 625 HP), boot space and price (40,200 £ vs 99,400 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or BMW 8 Series Convertible?

Audi A5 Sportback vs BMW 8 Series Convertible: Key differences

Audi A5 Sportback

  • clearly cheaper
  • marginally more power
  • significantly more efficient
  • barely lighter
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BMW 8 Series Convertible

  • slightly quicker 0–100 km/h
  • very slightly more trunk space
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By Achim Sedelmaier

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

A5 Sportback

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 A5 Sportback is clearly cheaper – starting at 40,200 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 59,228 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 2 L/100km and is significantly more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 4.9 L/100km.

8 Series Convertible

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Audi A5 Sportback offers marginally 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 slightly quicker – completing the sprint in 3.3 s, while the Audi A5 Sportback takes 3.7 s. That’s about 0.4 s quicker.

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

A5 Sportback

Space and Everyday Use:

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

Seats: Audi A5 Sportback offers more seats – 5 vs 4.

In terms of curb weight, Audi A5 Sportback is barely lighter – 1,770 kg compared to 1,915 kg. The difference is around 145 kg.

Looking at boot space, the BMW 8 Series Convertible offers very slightly more boot space – 350 L compared to 331 L. That’s a difference of about 19 L.

When it comes to payload, the Audi A5 Sportback carries slightly more – 530 kg compared to 425 kg. That’s a difference of about 105 kg.

Who wins the race in the data check?

The Audi A5 Sportback holds a decisive overall lead 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 £40,200
A5 Sportback

Audi A5 Sportback

  • 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 - 7.6 L/100km
  • Electric Range : 84 - 110 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A5 Sportback

The Audi A5 Sportback dresses up sleek coupe proportions with the everyday sense of a practical hatchback, so you get striking looks without the compromises. Behind the wheel it balances poise and comfort with premium trimmings that make daily driving feel a little bit special — ideal for buyers who want style and substance in equal measure.

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Reviews Audi A5 Sportback

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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 A5 Sportback
BMW 8 Series Convertible

Costs and Consumption
Price
40,200 - 91,000 £
Price
99,400 - 165,800 £
Consumption L/100km
2 - 7.6 L/100km
Consumption L/100km
6.9 - 11.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
84 - 110 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
45 - 172 g/km
co2
180 - 255 g/km
Fuel tank capacity
-
Fuel tank capacity
66 - 68 L

Dimensions and Body
Body Type
Hatchback
Body Type
Convertible
Seats
5
Seats
4
Doors
-
Doors
2
Curb weight
1,770 - 2,430 kg
Curb weight
1,915 - 2,125 kg
Trunk capacity
331 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
475 - 530 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 drivetrain options does the Audi A5 Sportback have?

The Audi A5 Sportback is available as 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.