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Audi A4 Limousine vs Mercedes GLA comparison

Compare performance (265 HP vs 421 HP), boot space and price (35,800 £ vs 38,800 £ ) at a glance. Find out which car is the better choice for you – Audi A4 Limousine or Mercedes GLA?

Audi A4 Limousine vs Mercedes GLA: Key differences

Audi A4 Limousine

  • marginally cheaper
  • only slightly lighter
  • barely more trunk space
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Mercedes GLA

4.5 (4 Reviews)
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  • markedly more power
  • considerably more efficient
  • visibly quicker 0–100 km/h
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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 marginally cheaper – starting at 35,800 £ , while the Mercedes GLA costs 38,800 £ . That’s a price difference of around 3,008 £.

Fuel consumption also shows a difference: the Mercedes GLA uses 2.9 L/100km and is considerably more efficient than the Audi A4 Limousine with 4.6 L/100km. The difference is about 1.7 L/100km.

GLA

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 GLA offers markedly more power – delivering 421 HP compared to 265 HP. That’s roughly 156 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLA is visibly quicker – completing the sprint in 4.3 s, while the Audi A4 Limousine takes 5.5 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Mercedes GLA delivers somewhat more torque with 500 Nm compared to 400 Nm. That’s about 100 Nm more.

A4 Limousine

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 A4 Limousine is only slightly lighter – 1,545 kg compared to 1,570 kg. The difference is around 25 kg.

Looking at boot space, the Audi A4 Limousine offers barely more boot space – 460 L compared to 435 L. That’s a difference of about 25 L.

When it comes to payload, the Audi A4 Limousine carries only slightly more – 540 kg compared to 500 kg. That’s a difference of about 40 kg.

Who wins the race in the data check?

The Mercedes GLA stands well ahead of its rival 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 £38,800
GLA

Mercedes GLA

  • Engine Type Petrol MHEV, Plugin Hybrid, Diesel, Petrol
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 421 HP
  • Consumption L/100km 2.9 - 9.5 L/100km
  • Electric Range 74 km
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View detailed analysis

Engine and Performance
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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 GLA

The Mercedes GLA is a compact luxury crossover that brings Mercedes-Benz's refined design and premium cabin materials into a practical, city-friendly package. It combines comfortable ride quality and intuitive tech with poised handling, making it a confident choice for everyday driving and longer journeys.

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Reviews Mercedes GLA

4.5 (4 Reviews)
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Lucien
1 May 2026, 07:12:24

GLA 180 petrol. Ideal for city and highway. Very smooth and quiet. The automatic gearbox is a delight. Average consumption 6.2 L/100 km. Special edition 180 Cyber Edition, leather seats....

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Gutter
24 Feb 2026, 21:53:27

Super nimble, very impressive power from this 1,300cc mild‑hybrid engine — in town, on the road and on the motorway for this 2025 GLA 180 Style AMG... premium interior!

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Serge
16 Jan 2026, 16:09:11

You have to compare like with like — the GLA should be compared to the Q3, not the Q2 as in your study!

How do you mainly use this car? (optional): Family car
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 GLA

Costs and Consumption
Price
35,800 - 46,600 £
Price
38,800 - 75,300 £
Consumption L/100km
4.6 - 7.4 L/100km
Consumption L/100km
2.9 - 9.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
74 km
Battery Capacity
-
Battery Capacity
-
co2
121 - 167 g/km
co2
66 - 216 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
1,570 - 1,810 kg
Trunk capacity
460 L
Trunk capacity
385 - 435 L
Length
4,762 mm
Length
-
Width
1,847 mm
Width
1,834 - 1,849 mm
Height
1,428 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
490 - 540 kg
Payload
480 - 500 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol MHEV
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel, Petrol
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
136 - 265 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
5.5 - 9.5 s
Acceleration 0-100km/h
4.3 - 11 s
Max Speed
210 - 250 km/h
Max Speed
-
Torque
270 - 400 Nm
Torque
230 - 500 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
100 - 195 kW
Power kW
85 - 310 kW
Engine capacity
1,968 - 1,984 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2023
Model Year
2025
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
E, F, B, G
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.