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Audi A4 Limousine vs Mercedes GLS comparison

Compare performance (265 HP vs 404 HP), boot space and price (35,800 £ vs 92,700 £ ) at a glance. Find out which car is the better choice for you – Audi A4 Limousine or Mercedes GLS?

Audi A4 Limousine vs Mercedes GLS: Key differences

Audi A4 Limousine

  • considerably cheaper
  • considerably more efficient
  • very slightly quicker 0–100 km/h
  • substantially lighter
  • noticeably more trunk space
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Mercedes GLS

  • visibly more power
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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 considerably cheaper – starting at 35,800 £ , while the Mercedes GLS costs 92,700 £ . That’s a price difference of around 56,834 £.

Fuel consumption also shows a difference: the Audi A4 Limousine uses 4.6 L/100km and is considerably more efficient than the Mercedes GLS with 7.9 L/100km. The difference is about 3.3 L/100km.

GLS

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 GLS offers visibly more power – delivering 404 HP compared to 265 HP. That’s roughly 139 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A4 Limousine is very slightly quicker – completing the sprint in 5.5 s, while the Mercedes GLS takes 5.6 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Mercedes GLS delivers significantly more torque with 750 Nm compared to 400 Nm. That’s about 350 Nm more.

A4 Limousine

Space and Everyday Use:

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

Seats: Mercedes GLS offers more seats – 7 vs 5.

In terms of curb weight, Audi A4 Limousine is substantially lighter – 1,545 kg compared to 2,580 kg. The difference is around 1,035 kg.

Looking at boot space, the Audi A4 Limousine offers noticeably more boot space – 460 L compared to 355 L. That’s a difference of about 105 L.

When it comes to payload, the Mercedes GLS carries visibly more – 820 kg compared to 540 kg. That’s a difference of about 280 kg.

Who wins the race in the data check?

The Audi A4 Limousine 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 £35,800
A4 Limousine

Audi A4 Limousine

  • Engine Type Diesel MHEV, Petrol MHEV
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 136 - 265 HP
  • Consumption L/100km 4.6 - 7.4 L/100km
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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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Mercedes GLS

The GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.

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Audi A4 Limousine
Mercedes GLS

Costs and Consumption
Price
35,800 - 46,600 £
Price
92,700 - 104,600 £
Consumption L/100km
4.6 - 7.4 L/100km
Consumption L/100km
7.9 - 9.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
121 - 167 g/km
co2
206 - 226 g/km
Fuel tank capacity
40 - 58 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
7
Doors
4
Doors
-
Curb weight
1,545 - 1,665 kg
Curb weight
2,580 - 2,670 kg
Trunk capacity
460 L
Trunk capacity
355 L
Length
4,762 mm
Length
-
Width
1,847 mm
Width
1,956 mm
Height
1,428 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
490 - 540 kg
Payload
810 - 820 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol MHEV
Engine Type
Petrol MHEV, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
136 - 265 HP
Power HP
336 - 404 HP
Acceleration 0-100km/h
5.5 - 9.5 s
Acceleration 0-100km/h
5.6 - 6.2 s
Max Speed
210 - 250 km/h
Max Speed
-
Torque
270 - 400 Nm
Torque
560 - 750 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
100 - 195 kW
Power kW
247 - 297 kW
Engine capacity
1,968 - 1,984 cm3
Engine capacity
2,989 - 2,999 cm3

General
Model Year
2023
Model Year
2026
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
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.