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Audi A4 Limousine vs Mercedes GLB comparison

Compare performance (265 HP vs 354 HP), boot space and price (35,800 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Audi A4 Limousine or Mercedes GLB?

Audi A4 Limousine vs Mercedes GLB: Key differences

Audi A4 Limousine

  • visibly cheaper
  • noticeably more efficient
  • somewhat lighter
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • clearly more power
  • moderately more trunk space
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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

A4 Limousine

Costs and Efficiency:

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

Audi A4 Limousine is visibly cheaper – starting at 35,800 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 7,369 £.

Fuel consumption also shows a difference: the Audi A4 Limousine uses 4.6 L/100km and is noticeably more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 1.1 L/100km.

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 Mercedes GLB offers clearly more power – delivering 354 HP compared to 265 HP. That’s roughly 89 HP more horsepower.

Both models accelerate almost equally fast – 5.5 s from 0 to 100 km/h.

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

A4 Limousine

Space and Everyday Use:

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

Both vehicles offer seating for 5 people.

In terms of curb weight, Audi A4 Limousine is somewhat lighter – 1,545 kg compared to 1,840 kg. The difference is around 295 kg.

Looking at boot space, the Mercedes GLB offers moderately more boot space – 540 L compared to 460 L. That’s a difference of about 80 L.

When it comes to payload, the Audi A4 Limousine carries barely more – 540 kg compared to 505 kg. That’s a difference of about 35 kg.

Who wins the race in the data check?

The Mercedes GLB 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 £43,200
GLB

Mercedes GLB

  • Engine Type Electric, Full Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 156 - 354 HP
  • Consumption L/100km 5.7 - 6.1 L/100km
  • Consumption kWh/100km 15.4 - 15.9 kWh/100km
  • Electric Range 431 - 631 km
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Audi A4 Limousine
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A4 Limousine

The Audi A4 is a polished, grown-up sedan that blends restraint with a subtle dose of sportiness, making it an easy choice for commuters and company car buyers alike. Inside it's all refined materials and sensible design, while the driving experience balances comfort and composure — clever, competent and quietly smug in the best possible way.

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Reviews Audi A4 Limousine

No reviews yet. Share your experience and help others decide.

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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Audi A4 Limousine
Mercedes GLB

Costs and Consumption
Price
35,800 - 46,600 £
Price
43,200 - 62,400 £
Consumption L/100km
4.6 - 7.4 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
-
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
121 - 167 g/km
co2
0 - 138 g/km
Fuel tank capacity
40 - 58 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
4
Doors
-
Curb weight
1,545 - 1,665 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
460 L
Trunk capacity
540 L
Length
4,762 mm
Length
-
Width
1,847 mm
Width
1,861 mm
Height
1,428 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
490 - 540 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol MHEV
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
136 - 265 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
5.5 - 9.5 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
210 - 250 km/h
Max Speed
-
Torque
270 - 400 Nm
Torque
280 - 515 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
100 - 195 kW
Power kW
115 - 260 kW
Engine capacity
1,968 - 1,984 cm3
Engine capacity
1,499 cm3

General
Model Year
2023
Model Year
2026
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
A, D, E
Brand
Audi
Brand
Mercedes-Benz
What drive types are available for the Audi A4 Limousine?

The Audi A4 Limousine 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.