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Audi Q3 vs Mercedes GLB comparison

Compare performance (272 HP vs 354 HP), boot space and price (38,200 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Audi Q3 or Mercedes GLB?

Audi Q3 vs Mercedes GLB: Key differences

Audi Q3

5 (1 Reviews)
rate
  • moderately cheaper
  • clearly more efficient
  • moderately lighter
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • markedly more power
  • considerably more electric range
  • barely quicker 0–100 km/h
  • very slightly 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

Q3

Unveiling the Contenders: Audi Q3 vs. Mercedes GLB

In an age where cutting-edge technology meets luxury, the SUV segment remains fiercely competitive. Today, we dive into a thorough comparison between two titans from Germany: the Audi Q3 and the Mercedes GLB. As both have been updated for the 2024 model year, the battle for supremacy is fiercer than ever. Let’s explore the specifications, performance, and innovations that define these two rivals.

GLB

Design and Dimensions

The 2024 Audi Q3 and Mercedes GLB both emphasize a robust SUV design, tailored for a sophisticated audience who appreciates both form and function.

Starting with the Audi Q3, it boasts a length ranging from 4484 to 4500 mm, a width of 1843 to 1849 mm, and a height spanning 1567 to 1585 mm. The sleek dimensions contribute to a more compact appearance, yet it’s spacious enough to accommodate all necessary travel essentials with a trunk capacity of 530 liters.

Conversely, the Mercedes GLB takes on a slightly larger stance with a length of 4634 to 4650 mm, width from 1834 to 1850 mm, and a height ranging between 1665 and 1692 mm. This positions the GLB as the roomier sibling in terms of trunk space, offering up to 570 liters.

Q3

Engine Specifications and Performance

Under the hood, the Audi Q3 offers a variety of petrol and diesel engines. The power range extends from 150 HP up to a robust 245 HP. The torque numbers are equally impressive, with figures from 250 to 400 Nm, ensuring a dynamic driving experience. Depending on the engine variant, the Q3's fuel consumption varies between 5.5 to 8.5 L/100km.

The Mercedes GLB counters with its own powerhouses, including petrol MHEV and diesel options. Its engines produce from 116 HP to a powerful 320 HP. Torque figures range from 230 to 400 Nm. Despite being larger, it maintains a reasonable fuel consumption, varying from 5.6 to 9 L/100km.

GLB

Transmission and Drive

Both the Q3 and GLB are equipped with advanced transmission systems. The Audi Q3 offers a choice between a manual gearbox and a dual-clutch automatic, catering to driving purists and tech-savvy motorists alike. Additionally, the Q3 is versatile in that it offers both front-wheel drive and all-wheel drive configurations.

The GLB, on the other hand, is equipped exclusively with a dual-clutch automatic transmission. Similarly, it provides flexibility in drive types, with options for front-wheel drive and all-wheel drive, appealing to a broader range of driving conditions.

Q3

Innovations and Efficiency

Both brands are synonymous with technological advancement. Audi’s Q3 integrates a suite of driver-assist features and a streamlined digital cockpit, enhancing the driving and safety experience. The Q3 also offers varying CO2 output efficiency, falling into class E, F, and G.

The Mercedes GLB matches up with its own array of safety and convenience features, including its MBUX (Mercedes-Benz User Experience) infotainment system, providing intuitive controls and a seamless interactive experience. Its CO2 efficiency also ranges within classes F, E, and G.

GLB

Conclusion: Choosing Your Champion

The Audi Q3 and Mercedes GLB each offer a distinct driving experience and cater to differing tastes. The Q3's appeal lies in its compact yet potent nature, offering robust engine performance and a stylishly compact design. The GLB, with its generous dimensions and innovative tech suite, caters to those who prioritize space and passenger comfort.

Ultimately, the choice between these contenders will depend on individual preferences, whether you favor the artistic precision of Audi's engineering or the spacious luxury offered by Mercedes-Benz. Either way, the luxury compact SUV realm has never been more exciting.

Frequently compared as well

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BMW iX3
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Here’s where it gets real: The technical differences in detail

Q3

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.

Audi Q3 is moderately cheaper – starting at 38,200 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 4,969 £.

Fuel consumption also shows a difference: the Audi Q3 uses 1.7 L/100km and is clearly more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 4 L/100km.

As for electric range, the Mercedes GLB offers considerably more range – reaching up to 631 km, about 512 km more than the Audi Q3.

GLB

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 GLB offers markedly more power – delivering 354 HP compared to 272 HP. That’s roughly 82 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is barely quicker – completing the sprint in 5.5 s, while the Audi Q3 takes 5.7 s. That’s about 0.2 s quicker.

There’s also a difference in torque: the Mercedes GLB delivers markedly more torque with 515 Nm compared to 400 Nm. That’s about 115 Nm more.

Q3

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 5 people.

In terms of curb weight, Audi Q3 is moderately lighter – 1,635 kg compared to 1,840 kg. The difference is around 205 kg.

Looking at boot space, the Mercedes GLB offers very slightly more boot space – 540 L compared to 488 L. That’s a difference of about 52 L.

When it comes to payload, the Audi Q3 carries marginally more – 535 kg compared to 505 kg. That’s a difference of about 30 kg.

Who wins the race in the data check?

The Audi Q3 shows a few small advantages 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
details
Audi Q3
Mercedes GLB

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

5 (1 Reviews)
rate
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 GLB

The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.

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Reviews Mercedes GLB

3.6 (4 Reviews)
rate
Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

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

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Mercedes GLB

Costs and Consumption
Price
38,200 - 52,900 £
Price
43,200 - 62,400 £
Consumption L/100km
1.7 - 8.6 L/100km
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
118 - 119 km
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
39 - 195 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,635 - 1,900 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
375 - 488 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,859 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
505 - 535 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel
Engine Type
Electric, Full Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
150 - 272 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
5.7 - 9.2 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
250 - 400 Nm
Torque
280 - 515 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
110 - 200 kW
Power kW
115 - 260 kW
Engine capacity
1,498 - 1,984 cm3
Engine capacity
1,499 cm3

General
Model Year
2,025 - 2,026
Model Year
2026
CO2 Efficiency Class
E, G, B, F
CO2 Efficiency Class
A, D, E
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.