VS

Audi A5 Sportback vs Mercedes GLB - Differences and prices compared

Compare performance (367 HP vs 320 HP), boot space and price (38700 £ vs 40500 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Mercedes GLB?

Audi A5 Sportback

Mercedes GLB

5 (1 Reviews)
rate

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

A5 Sportback

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Audi A5 Sportback has a barely noticeable advantage in terms of price – it starts at 38700 £ , while the Mercedes GLB costs 40500 £ . That’s a price difference of around 1767 £.

Fuel consumption also shows a difference: Audi A5 Sportback manages with 2 L and is therefore decisively more efficient than the Mercedes GLB with 5.60 L. The difference is about 3.60 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 Sportback 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 Sportback is evident 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 Sportback pulls noticeable stronger with 550 Nm compared to 400 Nm. That’s about 150 Nm difference.

A5 Sportback

Space and Everyday Use:

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

Seats: Mercedes GLB offers somewhat more seating capacity – 5 vs 4.

In curb weight, Mercedes GLB is barely noticeable lighter – 1640 kg compared to 1770 kg. The difference is around 130 kg.

In terms of boot space, the Mercedes GLB offers distinct more room – 570 L compared to 445 L. That’s a difference of about 125 L.

In maximum load capacity, the Mercedes GLB performs evident better – up to 1805 L, which is about 506 L more than the Audi A5 Sportback.

When it comes to payload, Audi A5 Sportback barely noticeable takes the win – 530 kg compared to 500 kg. That’s a difference of about 30 kg.

Who wins the race in the data check?

The Audi A5 Sportback 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.

Audi A5 Sportback
Mercedes GLB

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis
from about £38,700
A5 Sportback

Audi A5 Sportback

  • 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 - 7.6 L
  • Electric Range : 107 - 110 km

Audi A5 Sportback

The Audi A5 Sportback dresses up sleek coupe proportions with the everyday sense of a practical hatchback, so you get striking looks without the compromises. Behind the wheel it balances poise and comfort with premium trimmings that make daily driving feel a little bit special — ideal for buyers who want style and substance in equal measure.

details

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 A5 Sportback
Mercedes GLB

Costs and Consumption

Price
38700 - 68600 £
Price
40500 - 65300 £
Consumption L/100km
2 - 7.6 L
Consumption L/100km
5.6 - 9 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
107 - 110 km
Electric Range
-
Battery Capacity
20.70 kWh
Battery Capacity
-
co2
45 - 172 g/km
co2
146 - 204 g/km
Fuel tank capacity
46 - 60 L
Fuel tank capacity
52 - 60 L

Dimensions and Body

Body Type
Hatchback
Body Type
SUV
Seats
4
Seats
5
Doors
5
Doors
5
Curb weight
1770 - 2170 kg
Curb weight
1640 - 1820 kg
Trunk capacity
331 - 445 L
Trunk capacity
565 - 570 L
Length
4829 - 4835 mm
Length
4634 - 4650 mm
Width
1860 mm
Width
1834 - 1850 mm
Height
1429 - 1444 mm
Height
1665 - 1692 mm
Max trunk capacity
1175 - 1299 L
Max trunk capacity
1800 - 1805 L
Payload
475 - 530 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
216 - 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
Is the Audi A5 Sportback offered with different drivetrains?

Available configurations include All-Wheel Drive or Front-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.