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Mercedes GLS vs Audi Q7 comparison

Compare performance (634 HP vs 507 HP), boot space and price (96,100 £ vs 70,600 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLS or Audi Q7?

Mercedes GLS vs Audi Q7: Key differences

Mercedes GLS

  • noticeably more power

Audi Q7

4 (1 Reviews)
rate
  • clearly cheaper
  • considerably more efficient
  • barely quicker 0–100 km/h
  • noticeably lighter
  • substantially more trunk space

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

GLS

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 Q7 is clearly cheaper – starting at 70,600 £ , while the Mercedes GLS costs 96,100 £ . That’s a price difference of around 25,492 £.

Fuel consumption also shows a difference: the Audi Q7 uses 3.8 L/100km and is considerably more efficient than the Mercedes GLS with 7.8 L/100km. The difference is about 4 L/100km.

Q7

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 Mercedes GLS offers noticeably more power – delivering 634 HP compared to 507 HP. That’s roughly 127 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi Q7 is barely quicker – completing the sprint in 4.1 s, while the Mercedes GLS takes 4.2 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Mercedes GLS delivers very slightly more torque with 850 Nm compared to 770 Nm. That’s about 80 Nm more.

GLS

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 7 people.

In terms of curb weight, Audi Q7 is noticeably lighter – 2,055 kg compared to 2,550 kg. The difference is around 495 kg.

Looking at boot space, the Audi Q7 offers substantially more boot space – 887 L compared to 355 L. That’s a difference of about 532 L.

When it comes to payload, the Audi Q7 carries visibly more – 885 kg compared to 695 kg. That’s a difference of about 190 kg.

Who wins the race in the data check?

The Audi Q7 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 £70,600
Q7

Audi Q7

  • Engine Type : Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 231 - 507 HP
  • Consumption L/100km : 3.8 - 11.9 L/100km
  • Electric Range : 81 - 82 km
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Mercedes GLS
Audi Q7

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLS

The GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.

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Reviews Mercedes GLS

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

Audi Q7

The Audi Q7 cuts an imposing figure on the road, balancing restrained luxury with a spacious, tech-rich cabin that makes long journeys feel effortless. It rides with confident composure and polished manners, so if you want a premium family SUV that feels grown-up and worth the badge, the Q7 is a persuasive choice — even the in-laws will be impressed.

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Reviews Audi Q7

4 (1 Reviews)
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A.B.
24 Mar 2026, 11:45:19

Constant faults with the touch door opening, the trunk, sign-reading and the front obstacle sensors. The service repaired it under warranty five times — they replaced wiring harnesses, a sensor, uploaded software — and then gave up. They told me they don’t know what else to do. That’s the customer care at a German premium brand. A car worth over 400,000 and they tell the customer they don’t know what to do. I paid the final installment and I’m giving the car back to them. I’m taking a Chinese BYD Seal U DM-i plug-in hybrid with better equipment for 165k after a discount from 225k. With that attitude to customers and those high prices, the Germans will have fewer and fewer people interested in their cars — but they’ve only got themselves to blame!!!

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

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Mercedes GLS
Audi Q7

Costs and Consumption
Price
96,100 - 208,500 £
Price
70,600 - 100,600 £
Consumption L/100km
7.8 - 13.7 L/100km
Consumption L/100km
3.8 - 11.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
81 - 82 km
Battery Capacity
-
Battery Capacity
-
co2
204 - 310 g/km
co2
86 - 271 g/km
Fuel tank capacity
90 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
7
Seats
5 - 7
Doors
5
Doors
-
Curb weight
2,550 - 2,825 kg
Curb weight
2,055 - 2,460 kg
Trunk capacity
355 L
Trunk capacity
563 - 887 L
Length
5,208 - 5,233 mm
Length
-
Width
1,956 mm
Width
1,970 mm
Height
1,782 - 1,838 mm
Height
-
Max trunk capacity
2,400 L
Max trunk capacity
-
Payload
445 - 695 kg
Payload
640 - 885 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
333 - 634 HP
Power HP
231 - 507 HP
Acceleration 0-100km/h
4.2 - 6.7 s
Acceleration 0-100km/h
4.1 - 7.1 s
Max Speed
238 - 280 km/h
Max Speed
-
Torque
500 - 850 Nm
Torque
500 - 770 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
245 - 466 kW
Power kW
170 - 373 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
2,967 - 3,996 cm3

General
Model Year
2,024 - 2,025
Model Year
2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
G, B
Brand
Mercedes-Benz
Brand
Audi
Is the Mercedes GLS offered with different drivetrains?

The Mercedes GLS 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.