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Audi A4 Limousine vs Mercedes B Class comparison

Compare performance (265 HP vs 238 HP), boot space and price (35,800 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – Audi A4 Limousine or Mercedes B Class?

Audi A4 Limousine vs Mercedes B Class: Key differences

Audi A4 Limousine

  • a bit more power
  • somewhat more efficient
  • moderately quicker 0–100 km/h
  • barely more trunk space
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Mercedes B Class

4.9 (5 Reviews)
rate
  • very slightly cheaper
  • barely lighter
details

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:

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

Mercedes B Class is very slightly cheaper – starting at 33,100 £ , while the Audi A4 Limousine costs 35,800 £ . That’s a price difference of around 2,699 £.

Fuel consumption also shows a difference: the Audi A4 Limousine uses 4.6 L/100km and is somewhat more efficient than the Mercedes B Class with 5.1 L/100km. The difference is about 0.5 L/100km.

B Class

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Audi A4 Limousine offers a bit more power – delivering 265 HP compared to 238 HP. That’s roughly 27 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A4 Limousine is moderately quicker – completing the sprint in 5.5 s, while the Mercedes B Class takes 6.5 s. That’s about 1 s quicker.

Both models offer the same torque – 400 Nm.

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, Mercedes B Class is barely lighter – 1,405 kg compared to 1,545 kg. The difference is around 140 kg.

Looking at boot space, the Audi A4 Limousine offers barely more boot space – 460 L compared to 455 L. That’s a difference of about 5 L.

When it comes to payload, the Mercedes B Class carries barely more – 550 kg compared to 540 kg. That’s a difference of about 10 kg.

Who wins the race in the data check?

The Audi A4 Limousine is clearly 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 £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
Audi A4 Limousine
Mercedes B Class

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 B Class

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
Audi A4 Limousine
Mercedes B Class

Costs and Consumption

Price
35,800 - 46,600 £
Price
33,100 - 52,500 £
Consumption L/100km
4.6 - 7.4 L/100km
Consumption L/100km
5.1 - 6.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
121 - 167 g/km
co2
133 - 156 g/km
Fuel tank capacity
40 - 58 L
Fuel tank capacity
-

Dimensions and Body

Body Type
Sedan
Body Type
MPV
Seats
5
Seats
5
Doors
4
Doors
-
Curb weight
1,545 - 1,665 kg
Curb weight
1,405 - 1,565 kg
Trunk capacity
460 L
Trunk capacity
445 - 455 L
Length
4,762 mm
Length
-
Width
1,847 mm
Width
1,796 mm
Height
1,428 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
490 - 540 kg
Payload
515 - 550 kg

Engine and Performance

Engine Type
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
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
136 - 265 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
5.5 - 9.5 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
210 - 250 km/h
Max Speed
-
Torque
270 - 400 Nm
Torque
200 - 400 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
100 - 195 kW
Power kW
85 - 175 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
D, E, F
Brand
Audi
Brand
Mercedes-Benz
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.