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BMW 8 Series Convertible vs Audi A6 Avant comparison

Compare performance (625 HP vs 367 HP), boot space and price (99,400 £ vs 49,700 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Audi A6 Avant?

BMW 8 Series Convertible vs Audi A6 Avant: Key differences

BMW 8 Series Convertible

  • considerably more power
  • significantly quicker 0–100 km/h

Audi A6 Avant

  • considerably cheaper
  • considerably more efficient
  • very slightly lighter
  • clearly more trunk space

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 A6 Avant is considerably cheaper – starting at 49,700 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 49,714 £.

Fuel consumption also shows a difference: the Audi A6 Avant uses 2.3 L/100km and is considerably more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 4.6 L/100km.

A6 Avant

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 BMW 8 Series Convertible offers considerably more power – delivering 625 HP compared to 367 HP. That’s roughly 258 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is significantly quicker – completing the sprint in 3.3 s, while the Audi A6 Avant takes 4.7 s. That’s about 1.4 s quicker.

There’s no difference in top speed – both reach 250 km/h.

There’s also a difference in torque: the BMW 8 Series Convertible delivers markedly more torque with 750 Nm compared to 580 Nm. That’s about 170 Nm more.

8 Series Convertible

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Seats: Audi A6 Avant offers more seats – 5 vs 4.

In terms of curb weight, Audi A6 Avant is very slightly lighter – 1,865 kg compared to 1,915 kg. The difference is around 50 kg.

Looking at boot space, the Audi A6 Avant offers clearly more boot space – 503 L compared to 350 L. That’s a difference of about 153 L.

When it comes to payload, the Audi A6 Avant carries clearly more – 570 kg compared to 425 kg. That’s a difference of about 145 kg.

Who wins the race in the data check?

The Audi A6 Avant is far ahead 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 £49,700
A6 Avant

Audi A6 Avant

  • Engine Type : Petrol, Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 204 - 367 HP
  • Consumption L/100km : 2.3 - 7.5 L/100km
  • Electric Range : 94 - 101 km
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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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The Audi A6 Avant wraps executive poise and usable practicality into an impeccably finished estate that makes everyday driving feel noticeably more grown-up. It serves up a calm, composed ride and clever packaging for buyers who want space and refinement without ostentation — the sensible choice that still manages to impress.

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BMW 8 Series Convertible
Audi A6 Avant

Costs and Consumption
Price
99,400 - 165,800 £
Price
49,700 - 70,200 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
2.3 - 7.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
94 - 101 km
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
53 - 170 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
56 - 60 L

Dimensions and Body
Body Type
Convertible
Body Type
Estate
Seats
4
Seats
5
Doors
2
Doors
5
Curb weight
1,915 - 2,125 kg
Curb weight
1,865 - 2,240 kg
Trunk capacity
350 L
Trunk capacity
404 - 503 L
Length
4,851 - 4,867 mm
Length
4,999 mm
Width
1,902 - 1,907 mm
Width
1,875 mm
Height
1,345 - 1,353 mm
Height
1,472 mm
Max trunk capacity
-
Max trunk capacity
1,497 - 1,534 L
Payload
340 - 425 kg
Payload
535 - 570 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol, Petrol MHEV, Diesel MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
333 - 625 HP
Power HP
204 - 367 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
4.7 - 8.3 s
Max Speed
250 km/h
Max Speed
238 - 250 km/h
Torque
500 - 750 Nm
Torque
340 - 580 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4 - 6
Power kW
245 - 460 kW
Power kW
150 - 270 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
1,968 - 2,995 cm3

General
Model Year
2,024
Model Year
2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
F, D, E, 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.