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BMW 8 Series Coupé vs Audi A6 Avant comparison

Compare performance (625 HP vs 367 HP), boot space and price (90,000 £ vs 49,700 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Coupé or Audi A6 Avant?

BMW 8 Series Coupé vs Audi A6 Avant: Key differences

BMW 8 Series Coupé

  • significantly more power
  • substantially quicker 0–100 km/h
  • marginally lighter
details

Audi A6 Avant

  • substantially cheaper
  • significantly more efficient
  • moderately more trunk space
details

By Achim Sedelmaier

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

8 Series Coupé

Costs and Efficiency:

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

Audi A6 Avant is substantially cheaper – starting at 49,700 £ , while the BMW 8 Series Coupé costs 90,000 £ . That’s a price difference of around 40,286 £.

Fuel consumption also shows a difference: the Audi A6 Avant uses 2.3 L/100km and is significantly more efficient than the BMW 8 Series Coupé with 6.7 L/100km. The difference is about 4.4 L/100km.

A6 Avant

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 Coupé offers significantly 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 Coupé is substantially quicker – completing the sprint in 3.2 s, while the Audi A6 Avant takes 4.7 s. That’s about 1.5 s quicker.

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

8 Series Coupé

Space and Everyday Use:

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

Both vehicles offer seating for 5 people.

In terms of curb weight, BMW 8 Series Coupé is marginally lighter – 1,805 kg compared to 1,865 kg. The difference is around 60 kg.

Looking at boot space, the Audi A6 Avant offers moderately more boot space – 503 L compared to 440 L. That’s a difference of about 63 L.

When it comes to payload, the Audi A6 Avant carries barely more – 570 kg compared to 545 kg. That’s a difference of about 25 kg.

Who wins the race in the data check?

The Audi A6 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 £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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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 8 Series Coupé

The BMW 8 Series Coupé blends elegant, low-slung coupé looks with a purposeful, athletic stance that hints at both comfort and serious driving fun. Inside it feels indulgent and driver-focused, the sort of car that turns motorway miles into a breeze while quietly daring you to chase a twisty back road — and yes, it photographs magnificently.

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Reviews BMW 8 Series Coupé

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Audi A6 Avant

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 Coupé
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Costs and Consumption
Price
90,000 - 158,900 £
Price
49,700 - 70,200 £
Consumption L/100km
6.7 - 11.5 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
176 - 263 g/km
co2
53 - 170 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Coupe
Body Type
Estate
Seats
4 - 5
Seats
5
Doors
2 - 4
Doors
-
Curb weight
1,805 - 2,085 kg
Curb weight
1,865 - 2,240 kg
Trunk capacity
420 - 440 L
Trunk capacity
404 - 503 L
Length
4,851 - 5,098 mm
Length
-
Width
1,902 - 1,943 mm
Width
1,875 mm
Height
1,346 - 1,420 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
370 - 545 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
3.2 - 5.4 s
Acceleration 0-100km/h
4.7 - 8.3 s
Max Speed
250 km/h
Max Speed
-
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
2024
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
F, D, E, B
Brand
BMW
Brand
Audi
What drive types are available for the BMW 8 Series Coupé?

The BMW 8 Series Coupé is offered with 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.