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BMW X6 vs Audi A6 Limousine comparison

Compare performance (625 HP vs 367 HP), boot space and price (84,100 £ vs 47,600 £ ) at a glance. Find out which car is the better choice for you – BMW X6 or Audi A6 Limousine?

BMW X6 vs Audi A6 Limousine: Key differences

BMW X6

4.5 (2 Reviews)
rate
  • considerably more power
  • noticeably quicker 0–100 km/h
  • slightly more trunk space
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Audi A6 Limousine

  • considerably cheaper
  • significantly more efficient
  • markedly lighter
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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

X6

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 Limousine is considerably cheaper – starting at 47,600 £ , while the BMW X6 costs 84,100 £ . That’s a price difference of around 36,514 £.

Fuel consumption also shows a difference: the Audi A6 Limousine uses 2.2 L/100km and is significantly more efficient than the BMW X6 with 7.2 L/100km. The difference is about 5 L/100km.

A6 Limousine

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 BMW X6 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 X6 is noticeably quicker – completing the sprint in 3.9 s, while the Audi A6 Limousine takes 4.7 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the BMW X6 delivers markedly more torque with 750 Nm compared to 580 Nm. That’s about 170 Nm more.

X6

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 A6 Limousine is markedly lighter – 1,845 kg compared to 2,240 kg. The difference is around 395 kg.

Looking at boot space, the BMW X6 offers slightly more boot space – 580 L compared to 492 L. That’s a difference of about 88 L.

When it comes to payload, the BMW X6 carries slightly more – 695 kg compared to 625 kg. That’s a difference of about 70 kg.

Who wins the race in the data check?

The Audi A6 Limousine 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 £47,600
A6 Limousine

Audi A6 Limousine

  • Engine Type Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 204 - 367 HP
  • Consumption L/100km 2.2 - 7.3 L/100km
  • Electric Range 97 - 105 km
details

Frequently compared as well

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Audi A6 Limousine

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW X6

The BMW X6 wears its coupe-SUV looks like a tuxedo with oversized shoulders, turning everyday traffic into a catwalk whenever it glides past. It serves up sporty handling and a plush cabin with just enough practicality to keep daily life sane — perfect for buyers who crave drama without completely abandoning common sense.

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Reviews BMW X6

4.5 (2 Reviews)
rate
marcus
9 Jun 2026, 16:23:07

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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
Ioana Annayse Simion
26 Jan 2026, 17:50:11

BMW IS BEST!!!!!!

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

Audi A6 Limousine

The Audi A6 cuts a clean, purposeful silhouette with an interior that feels like a quiet, high-tech office on wheels—luxurious materials and clever gadgets make long journeys surprisingly pleasant. It balances composed, confident driving with enough flair to keep you entertained, making it a sensible choice for buyers who want executive polish without showing off.

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Reviews Audi A6 Limousine

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

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Audi A6 Limousine

Costs and Consumption
Price
84,100 - 147,300 £
Price
47,600 - 68,100 £
Consumption L/100km
7.2 - 12.7 L/100km
Consumption L/100km
2.2 - 7.3 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
97 - 105 km
Battery Capacity
-
Battery Capacity
-
co2
188 - 288 g/km
co2
49 - 166 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,240 - 2,445 kg
Curb weight
1,845 - 2,220 kg
Trunk capacity
580 L
Trunk capacity
354 - 492 L
Length
-
Length
-
Width
2,004 - 2,019 mm
Width
1,875 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
595 - 695 kg
Payload
535 - 625 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
298 - 625 HP
Power HP
204 - 367 HP
Acceleration 0-100km/h
3.9 - 6.1 s
Acceleration 0-100km/h
4.7 - 8.2 s
Max Speed
-
Max Speed
-
Torque
540 - 750 Nm
Torque
340 - 580 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4 - 6
Power kW
219 - 460 kW
Power kW
150 - 270 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
1,968 - 2,995 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
F, D, E, B
Brand
BMW
Brand
Audi
What drivetrain options does the BMW X6 have?

The BMW X6 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.