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BMW 3 Series Saloon vs Mercedes A Class Saloon comparison

Compare performance (530 HP vs 320 HP), boot space and price (39900 £ vs 32700 £ ) at a glance. Find out which car is the better choice for you – BMW 3 Series Saloon or Mercedes A Class Saloon?

BMW 3 Series Saloon vs Mercedes A Class Saloon: Key differences

BMW 3 Series Saloon

  • evident more power
  • a bit more electric range
  • clearly perceptible quicker from 0–100 km/h
  • a bit more trunk space

Mercedes A Class Saloon

  • clearly perceptible cheaper
  • significantly more efficient
  • barely noticeable lighter

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

3 Series Saloon

Costs and Efficiency:

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

Mercedes A Class Saloon has a clearly perceptible advantage in terms of price – it starts at 32700 £ , while the BMW 3 Series Saloon costs 39900 £ . That’s a price difference of around 7221 £.

Fuel consumption also shows a difference: Mercedes A Class Saloon manages with 0.70 L and is therefore significantly more efficient than the BMW 3 Series Saloon with 2.40 L. The difference is about 1.70 L per 100 km.

As for electric range, the BMW 3 Series Saloon performs a bit better – achieving up to 101 km, about 13 km more than the Mercedes A Class Saloon.

A Class Saloon

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 BMW 3 Series Saloon has a evident edge – offering 530 HP compared to 320 HP. That’s roughly 210 HP more horsepower.

In acceleration from 0 to 100 km/h, the BMW 3 Series Saloon is clearly perceptible quicker – completing the sprint in 3.50 s, while the Mercedes A Class Saloon takes 4.80 s. That’s about 1.30 s faster.

There’s no difference in top speed – both reach 250 km/h.

There’s also a difference in torque: BMW 3 Series Saloon pulls evident stronger with 700 Nm compared to 450 Nm. That’s about 250 Nm difference.

3 Series Saloon

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 curb weight, Mercedes A Class Saloon is barely noticeable lighter – 1450 kg compared to 1575 kg. The difference is around 125 kg.

In terms of boot space, the BMW 3 Series Saloon offers a bit more room – 480 L compared to 395 L. That’s a difference of about 85 L.

When it comes to payload, BMW 3 Series Saloon slight takes the win – 495 kg compared to 490 kg. That’s a difference of about 5 kg.

Who wins the race in the data check?

The Mercedes A Class Saloon is decisively ahead 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.

Frequently compared as well

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BMW 3 Series Saloon
Mercedes A Class Saloon

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £32,700
A Class Saloon

Mercedes A Class Saloon

  • Engine Type : Plugin Hybrid, Petrol MHEV, Diesel
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 320 HP
  • Consumption L/100km : 0.7 - 8.1 L
  • Electric Range : 88 km
details

BMW 3 Series Saloon

The BMW 3 Series saloon is a driver's car in a suit, blending poised handling with a cabin that feels more premium than its practicality suggests. It’s composed enough for daily duties yet playful enough to keep weekend drives interesting, making it a sensible choice for buyers who still want to have fun.

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Mercedes A Class Saloon

The Mercedes A‑Class Saloon blends compact practicality with premium flair, wrapping a surprisingly spacious interior in a slick, modern package that feels more grown-up than its hatchback sibling. It’s an ideal choice for city drivers who want Mercedes polish and cutting-edge tech without the ostentation of a larger saloon, and it even manages to make the daily commute feel a little bit special.

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Reviews BMW 3 Series Saloon

Reviews Mercedes A Class Saloon

BMW 3 Series Saloon
Mercedes A Class Saloon

Costs and Consumption
Price
39900 - 91000 £
Price
32700 - 55900 £
Consumption L/100km
2.4 - 10.1 L
Consumption L/100km
0.7 - 8.1 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
96 - 101 km
Electric Range
88 km
Battery Capacity
19.50 kWh
Battery Capacity
12.90 kWh
co2
54 - 227 g/km
co2
16 - 184 g/km
Fuel tank capacity
40 - 59 L
Fuel tank capacity
35 - 51 L

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
5
Doors
4
Doors
4
Curb weight
1575 - 1960 kg
Curb weight
1450 - 1705 kg
Trunk capacity
375 - 480 L
Trunk capacity
345 - 395 L
Length
4713 - 4714 mm
Length
4558 - 4570 mm
Width
1827 - 1903 mm
Width
1796 mm
Height
1440 - 1446 mm
Height
1413 - 1429 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
405 - 495 kg
Payload
475 - 490 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV, Plugin Hybrid
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Transmission
Automatic, Manuel
Transmission
Automatic
Transmission Detail
Automatic Gearbox, Manual Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
150 - 530 HP
Power HP
116 - 320 HP
Acceleration 0-100km/h
3.5 - 8.6 s
Acceleration 0-100km/h
4.8 - 9.9 s
Max Speed
218 - 250 km/h
Max Speed
206 - 250 km/h
Torque
250 - 700 Nm
Torque
200 - 450 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
110 - 390 kW
Power kW
85 - 235 kW
Engine capacity
1995 - 2998 cm3
Engine capacity
1332 - 1991 cm3

General
Model Year
2024 - 2025
Model Year
2024 - 2025
CO2 Efficiency Class
D, E, F, G, B
CO2 Efficiency Class
B, D, G, E
Brand
BMW
Brand
Mercedes-Benz

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What drive types are available for the BMW 3 Series Saloon?

The BMW 3 Series Saloon is offered with Rear-Wheel Drive or All-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.