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Audi A8 vs BMW iX comparison

Compare performance (571 HP vs 659 HP), boot space and price (91,400 £ vs 71,600 £ ) at a glance. Find out which car is the better choice for you – Audi A8 or BMW iX?

Audi A8 vs BMW iX: Key differences

Audi A8

5 (1 Reviews)
rate
  • markedly lighter
details

BMW iX

4.2 (3 Reviews)
rate
  • markedly cheaper
  • slightly more power
  • clearly more electric range
  • visibly more trunk space
details

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

A8

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.

BMW iX is markedly cheaper – starting at 71,600 £ , while the Audi A8 costs 91,400 £ . That’s a price difference of around 19,800 £.

As for electric range, the BMW iX offers clearly more range – reaching up to 701 km, about 643 km more than the Audi A8.

iX

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 iX offers slightly more power – delivering 659 HP compared to 571 HP. That’s roughly 88 HP more horsepower.

Both models accelerate almost equally fast – 3.8 s from 0 to 100 km/h.

There’s also a difference in torque: the BMW iX delivers visibly more torque with 1,015 Nm compared to 800 Nm. That’s about 215 Nm more.

A8

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.

Both vehicles offer seating for 5 people.

In terms of curb weight, Audi A8 is markedly lighter – 2,035 kg compared to 2,525 kg. The difference is around 490 kg.

Looking at boot space, the BMW iX offers visibly more boot space – 500 L compared to 390 L. That’s a difference of about 110 L.

When it comes to payload, the Audi A8 carries somewhat more – 700 kg compared to 575 kg. That’s a difference of about 125 kg.

Who wins the race in the data check?

The BMW iX 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 £71,600
iX

BMW iX

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 408 - 659 HP
  • Consumption kWh/100km 17.8 - 20.6 kWh/100km
  • Electric Range 600 - 701 km
details

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Audi A8
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A8

The Audi A8 arrives with the kind of quiet authority that makes other limousines feel like they’re trying too hard, offering a cabin wrapped in subtle luxury and tech that never demands attention. For buyers who want composed comfort and discreet status, it’s the sensible splurge that turns daily commutes into a private parade.

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Reviews Audi A8

5 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

BMW iX

The BMW iX arrives like a tech-rich luxury SUV that refuses to shout, offering a serene yet authoritative road presence that suits both city commutes and long-distance cruising. Inside, its minimalist cabin wraps high-quality materials and clever interfaces around a driver-focused layout, making it feel more like a forward-thinking lounge than just another electric appliance — and yes, it still delivers the dynamic driving character you'd expect from a BMW.

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Reviews BMW iX

4.2 (3 Reviews)
rate
Massimiliano La Vignma
5 Feb 2026, 13:42:39

Innovative, with generous interior space but at the expense of the boot. I have an M60 — strong acceleration and excellent self-charging, especially on the motorway.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Audi A8
BMW iX

Costs and Consumption
Price
91,400 - 134,900 £
Price
71,600 - 108,400 £
Consumption L/100km
4.6 - 11.5 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
17.8 - 20.6 kWh/100km
Electric Range
58 km
Electric Range
600 - 701 km
Battery Capacity
-
Battery Capacity
-
co2
105 - 260 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,035 - 2,415 kg
Curb weight
2,525 - 2,655 kg
Trunk capacity
390 L
Trunk capacity
500 L
Length
-
Length
-
Width
1,945 mm
Width
1,970 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
525 - 700 kg
Payload
505 - 575 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
286 - 571 HP
Power HP
408 - 659 HP
Acceleration 0-100km/h
3.8 - 5.9 s
Acceleration 0-100km/h
3.8 - 5.1 s
Max Speed
-
Max Speed
-
Torque
500 - 800 Nm
Torque
700 - 1,015 Nm
Number of Cylinders
6 - 8
Number of Cylinders
-
Power kW
210 - 420 kW
Power kW
300 - 485 kW
Engine capacity
2,967 - 3,996 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
G, C
CO2 Efficiency Class
A
Brand
Audi
Brand
BMW
What drive types are available for the Audi A8?

The Audi A8 is available as All-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.