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Audi A5 Avant vs Mercedes GLB - Differences and prices compared

Compare performance (367 HP vs 320 HP), boot space and price (40200 £ vs 40500 £) at a glance. Find out which car is the better choice for you – Audi A5 Avant or Mercedes GLB?

Audi A5 Avant

Mercedes GLB

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

A5 Avant

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 A5 Avant has a hardly perceptible advantage in terms of price – it starts at 40200 £, while the Mercedes GLB costs 40500 £. That’s a price difference of around 352 £.

Fuel consumption also shows a difference: Audi A5 Avant manages with 2.10 L and is therefore decisively more efficient than the Mercedes GLB with 5.60 L. The difference is about 3.50 L per 100 km.

GLB

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 Audi A5 Avant has a somewhat edge – offering 367 HP compared to 320 HP. That’s roughly 47 HP more horsepower.

In acceleration from 0 to 100 km/h, the Audi A5 Avant is noticeable quicker – completing the sprint in 4.50 s, while the Mercedes GLB takes 5.50 s. That’s about 1 s faster.

There’s no difference in top speed – both reach 250 km/h.

There’s also a difference in torque: Audi A5 Avant pulls evident stronger with 550 Nm compared to 400 Nm. That’s about 150 Nm difference.

A5 Avant

Space and Everyday Use:

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

Seats: Mercedes GLB offers to a small extent more seating capacity – 5 vs 4.

In curb weight, Mercedes GLB is hardly perceptible lighter – 1640 kg compared to 1785 kg. The difference is around 145 kg.

In terms of boot space, the Mercedes GLB offers slightly more room – 570 L compared to 476 L. That’s a difference of about 94 L.

In maximum load capacity, the Mercedes GLB performs noticeable better – up to 1805 L, which is about 381 L more than the Audi A5 Avant.

When it comes to payload, Audi A5 Avant barely noticeable takes the win – 535 kg compared to 500 kg. That’s a difference of about 35 kg.

Who comes out on top?

Overall, the Audi A5 Avant shows itself to be leaves the rival little chance and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.

from about £40,200
A5 Avant

Audi A5 Avant

  • Engine Type : Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Front-Wheel Drive
  • Power HP : 150 - 367 HP
  • Consumption L/100km : 2.1 - 7.7 L
  • Electric Range : 104 - 108 km
Audi A5 Avant
Mercedes GLB

Costs and Consumption

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Engine and Performance

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Dimensions and Body

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Audi A5 Avant

The Audi A5 Avant dresses like a sleek coupe but carries like a sensible estate, offering buyers a rare blend of glamour and everyday practicality. Inside, the cabin feels beautifully sorted and the drive is composed and engaging, making routine errands feel a touch more enjoyable than they have any right to be.

details

Mercedes GLB

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.

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Audi A5 Avant
Mercedes GLB
A5 Avant
GLB

Costs and Consumption

Price
40200 - 70000 £
Price
40500 - 65300 £
Consumption L/100km
2.1 - 7.7 L
Consumption L/100km
5.6 - 9 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
104 - 108 km
Electric Range
-
Battery Capacity
20.70 kWh
Battery Capacity
-
co2
47 - 175 g/km
co2
146 - 204 g/km
Fuel tank capacity
46 - 60 L
Fuel tank capacity
52 - 60 L

Dimensions and Body

Body Type
Estate
Body Type
SUV
Seats
4
Seats
5
Doors
5
Doors
5
Curb weight
1785 - 2185 kg
Curb weight
1640 - 1820 kg
Trunk capacity
361 - 476 L
Trunk capacity
565 - 570 L
Length
4829 - 4835 mm
Length
4634 - 4650 mm
Width
1860 mm
Width
1834 - 1850 mm
Height
1444 - 1460 mm
Height
1665 - 1692 mm
Max trunk capacity
1306 - 1424 L
Max trunk capacity
1800 - 1805 L
Payload
480 - 535 kg
Payload
500 kg

Engine and Performance

Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
150 - 367 HP
Power HP
116 - 320 HP
Acceleration 0-100km/h
4.5 - 9.8 s
Acceleration 0-100km/h
5.5 - 11.5 s
Max Speed
214 - 250 km/h
Max Speed
188 - 250 km/h
Torque
280 - 550 Nm
Torque
230 - 400 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
110 - 270 kW
Power kW
85 - 235 kW
Engine capacity
1968 - 2995 cm3
Engine capacity
1332 - 1991 cm3

General

Model Year
2025
Model Year
2025
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
E, F, G
Brand
Audi
Brand
Mercedes-Benz
What drive types are available for the Audi A5 Avant?

The Audi A5 Avant is offered with All-Wheel Drive or Front-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.