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Audi Q3 vs Mercedes GLS comparison

Compare performance (272 HP vs 404 HP), boot space and price (38,200 £ vs 92,700 £ ) at a glance. Find out which car is the better choice for you – Audi Q3 or Mercedes GLS?

Audi Q3 vs Mercedes GLS: Key differences

Audi Q3

4.3 (4 Reviews)
rate
  • clearly cheaper
  • significantly more efficient
  • substantially lighter
  • markedly more trunk space
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Mercedes GLS

  • markedly more power
  • marginally quicker 0–100 km/h
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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

Q3

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Audi Q3 is clearly cheaper – starting at 38,200 £ , while the Mercedes GLS costs 92,700 £ . That’s a price difference of around 54,434 £.

Fuel consumption also shows a difference: the Audi Q3 uses 1.7 L/100km and is significantly more efficient than the Mercedes GLS with 7.9 L/100km. The difference is about 6.2 L/100km.

GLS

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 markedly more power – delivering 404 HP compared to 272 HP. That’s roughly 132 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLS is marginally quicker – completing the sprint in 5.6 s, while the Audi Q3 takes 5.7 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Mercedes GLS delivers significantly more torque with 750 Nm compared to 400 Nm. That’s about 350 Nm more.

Q3

Space and Everyday Use:

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

Seats: Mercedes GLS offers more seats – 7 vs 5.

In terms of curb weight, Audi Q3 is substantially lighter – 1,635 kg compared to 2,580 kg. The difference is around 945 kg.

Looking at boot space, the Audi Q3 offers markedly more boot space – 488 L compared to 355 L. That’s a difference of about 133 L.

When it comes to payload, the Mercedes GLS carries visibly more – 820 kg compared to 535 kg. That’s a difference of about 285 kg.

Who wins the race in the data check?

The Audi Q3 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 £38,200
Q3

Audi Q3

  • Engine Type Petrol MHEV, Petrol, Plugin Hybrid, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 150 - 272 HP
  • Consumption L/100km 1.7 - 8.6 L/100km
  • Electric Range 118 - 119 km
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Frequently compared as well

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Mercedes GLS

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi Q3

The Audi Q3 is a compact premium crossover that blends sharp styling with a well-crafted interior, making it an appealing choice for urban drivers who want a touch of luxury. It delivers a composed ride, intuitive tech features and a practical cabin, so it works well as a comfortable daily driver with an upscale feel.

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Reviews Audi Q3

4.3 (4 Reviews)
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Del
16 Jun 2026, 12:27:22

Very comfortable and very enjoyable to drive, interior very pleasant. Only missing the automatic controls.

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
dd
2 Nov 2025, 22:05:04

Very comfortable. Precise steering. E35 petrol engine, 150 hp — sufficient. Manual gearbox very good and well-geared. Looks very handsome. Very large boot. Premium interior.

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.

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Mercedes GLS

Costs and Consumption
Price
38,200 - 52,900 £
Price
92,700 - 104,600 £
Consumption L/100km
1.7 - 8.6 L/100km
Consumption L/100km
7.9 - 9.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
118 - 119 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
39 - 195 g/km
co2
206 - 226 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
7
Doors
-
Doors
-
Curb weight
1,635 - 1,900 kg
Curb weight
2,580 - 2,670 kg
Trunk capacity
375 - 488 L
Trunk capacity
355 L
Length
-
Length
-
Width
1,859 mm
Width
1,956 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
505 - 535 kg
Payload
810 - 820 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel
Engine Type
Petrol MHEV, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
150 - 272 HP
Power HP
336 - 404 HP
Acceleration 0-100km/h
5.7 - 9.2 s
Acceleration 0-100km/h
5.6 - 6.2 s
Max Speed
-
Max Speed
-
Torque
250 - 400 Nm
Torque
560 - 750 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
110 - 200 kW
Power kW
247 - 297 kW
Engine capacity
1,498 - 1,984 cm3
Engine capacity
2,989 - 2,999 cm3

General
Model Year
2,025 - 2,026
Model Year
2026
CO2 Efficiency Class
E, G, B, F
CO2 Efficiency Class
G
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi Q3 have?

The Audi Q3 is available as Front-Wheel Drive or 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.