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Audi Q3 vs Mercedes GLB - Differences and prices compared

Compare performance (272 HP vs 320 HP), boot space and price (38200 £ vs 40500 £ ) at a glance. Find out which car is the better choice for you – Audi Q3 or Mercedes GLB?

Audi Q3

5 (1 Reviews)
rate

Mercedes GLB

5 (1 Reviews)
rate

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 has a slight advantage in terms of price – it starts at 38200 £ , while the Mercedes GLB costs 40500 £ . That’s a price difference of around 2281 £.

Fuel consumption also shows a difference: Audi Q3 manages with 1.70 L and is therefore significantly more efficient than the Mercedes GLB with 5.60 L. The difference is about 3.90 L per 100 km.

GLB

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes GLB has a to a small extent edge – offering 320 HP compared to 272 HP. That’s roughly 48 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes GLB is hardly perceptible quicker – completing the sprint in 5.50 s, while the Audi Q3 takes 5.70 s. That’s about 0.20 s faster.

In terms of top speed, the Mercedes GLB performs minimal better – reaching 250 km/h, while the Audi Q3 tops out at 240 km/h. The difference is around 10 km/h.

Both models offer the same torque – 400 Nm.

Q3

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 curb weight, Audi Q3 is hardly perceptible lighter – 1635 kg compared to 1640 kg. The difference is around 5 kg.

In terms of boot space, the Mercedes GLB offers to a small extent more room – 570 L compared to 488 L. That’s a difference of about 82 L.

In maximum load capacity, the Mercedes GLB performs noticeable better – up to 1805 L, which is about 419 L more than the Audi Q3.

When it comes to payload, Audi Q3 slight takes the win – 535 kg compared to 500 kg. That’s a difference of about 35 kg.

Who wins the race in the data check?

The Audi Q3 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.

Audi Q3
Mercedes GLB

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis
from about £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
  • Electric Range : 118 - 119 km

Audi Q3

5 (1 Reviews)
rate

The Audi Q3 feels like a grown-up compact SUV with premium polish and city-friendly agility, the sort of car that makes weekend escapes and daily commutes equally satisfying. Inside, you get quality materials and smart packaging that keep things practical without skimping on style, so it’s an easy pick for buyers who want luxury without the drama.

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Mercedes GLB

5 (1 Reviews)
rate

The Mercedes GLB is a practical compact SUV that mixes boxy, family-friendly space with premium German polish, making it an appealing choice for buyers who want usefulness without pretension. It drives with a confident, composed feel and somehow manages to look both rugged and refined — the grown-up SUV that still likes to have fun.

details
Audi Q3
Mercedes GLB

Costs and Consumption

Price
38200 - 52900 £
Price
40500 - 65300 £
Consumption L/100km
1.7 - 8.6 L
Consumption L/100km
5.6 - 9 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
118 - 119 km
Electric Range
-
Battery Capacity
19.70 kWh
Battery Capacity
-
co2
39 - 195 g/km
co2
146 - 204 g/km
Fuel tank capacity
45 - 60 L
Fuel tank capacity
52 - 60 L

Dimensions and Body

Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1635 - 1900 kg
Curb weight
1640 - 1820 kg
Trunk capacity
375 - 488 L
Trunk capacity
565 - 570 L
Length
4531 mm
Length
4634 - 4650 mm
Width
1859 mm
Width
1834 - 1850 mm
Height
1559 - 1601 mm
Height
1665 - 1692 mm
Max trunk capacity
1196 - 1386 L
Max trunk capacity
1800 - 1805 L
Payload
505 - 535 kg
Payload
500 kg

Engine and Performance

Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
150 - 272 HP
Power HP
116 - 320 HP
Acceleration 0-100km/h
5.7 - 9.2 s
Acceleration 0-100km/h
5.5 - 11.5 s
Max Speed
208 - 240 km/h
Max Speed
188 - 250 km/h
Torque
250 - 400 Nm
Torque
230 - 400 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
110 - 200 kW
Power kW
85 - 235 kW
Engine capacity
1498 - 1984 cm3
Engine capacity
1332 - 1991 cm3

General

Model Year
2025
Model Year
2025
CO2 Efficiency Class
E, G, B
CO2 Efficiency Class
E, F, G
Brand
Audi
Brand
Mercedes-Benz
Is the Audi Q3 offered with different drivetrains?

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

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.