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Mercedes A Class Saloon vs Audi Q3 comparison

Compare performance (320 HP vs 272 HP), boot space and price (32,700 £ vs 38,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes A Class Saloon or Audi Q3?

Mercedes A Class Saloon vs Audi Q3: Key differences

Mercedes A Class Saloon

  • slightly cheaper
  • a bit more power
  • substantially more efficient
  • slightly quicker 0–100 km/h
  • moderately lighter
details

Audi Q3

4.3 (4 Reviews)
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  • clearly more electric range
  • 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

A Class Saloon

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mercedes A Class Saloon is slightly cheaper – starting at 32,700 £ , while the Audi Q3 costs 38,200 £ . That’s a price difference of around 5,507 £.

Fuel consumption also shows a difference: the Mercedes A Class Saloon uses 0.7 L/100km and is substantially more efficient than the Audi Q3 with 1.7 L/100km. The difference is about 1 L/100km.

As for electric range, the Audi Q3 offers clearly more range – reaching up to 119 km, about 31 km more than the Mercedes A Class Saloon.

Q3

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 Mercedes A Class Saloon offers a bit more power – delivering 320 HP compared to 272 HP. That’s roughly 48 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes A Class Saloon is slightly quicker – completing the sprint in 4.8 s, while the Audi Q3 takes 5.7 s. That’s about 0.9 s quicker.

There’s also a difference in torque: the Mercedes A Class Saloon delivers somewhat more torque with 450 Nm compared to 400 Nm. That’s about 50 Nm more.

A Class 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 terms of curb weight, Mercedes A Class Saloon is moderately lighter – 1,450 kg compared to 1,635 kg. The difference is around 185 kg.

Looking at boot space, the Audi Q3 offers moderately more boot space – 488 L compared to 395 L. That’s a difference of about 93 L.

When it comes to payload, the Audi Q3 carries marginally more – 535 kg compared to 490 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The Mercedes A Class Saloon 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 £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/100km
  • Electric Range 88 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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 Mercedes A Class Saloon

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

Audi Q3

The Audi Q3 is a compact premium crossover that blends sharp styling with a well-crafted interior, making it an appealing choice for urban drivers who want a touch of luxury. It delivers a composed ride, intuitive tech features and a practical cabin, so it works well as a comfortable daily driver with an upscale feel.

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Reviews Audi Q3

4.3 (4 Reviews)
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Del
16 Jun 2026, 12:27:22

Very comfortable and very enjoyable to drive, interior very pleasant. Only missing the automatic controls.

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
dd
2 Nov 2025, 22:05:04

Very comfortable. Precise steering. E35 petrol engine, 150 hp — sufficient. Manual gearbox very good and well-geared. Looks very handsome. Very large boot. Premium interior.

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Mercedes A Class Saloon
Audi Q3

Costs and Consumption
Price
32,700 - 55,900 £
Price
38,200 - 52,900 £
Consumption L/100km
0.7 - 8.1 L/100km
Consumption L/100km
1.7 - 8.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
88 km
Electric Range
118 - 119 km
Battery Capacity
12.9 kWh
Battery Capacity
-
co2
16 - 184 g/km
co2
39 - 195 g/km
Fuel tank capacity
35 - 51 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
4
Doors
-
Curb weight
1,450 - 1,705 kg
Curb weight
1,635 - 1,900 kg
Trunk capacity
345 - 395 L
Trunk capacity
375 - 488 L
Length
4,558 - 4,570 mm
Length
-
Width
1,796 mm
Width
1,859 mm
Height
1,413 - 1,429 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 490 kg
Payload
505 - 535 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, 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
116 - 320 HP
Power HP
150 - 272 HP
Acceleration 0-100km/h
4.8 - 9.9 s
Acceleration 0-100km/h
5.7 - 9.2 s
Max Speed
206 - 250 km/h
Max Speed
-
Torque
200 - 450 Nm
Torque
250 - 400 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
85 - 235 kW
Power kW
110 - 200 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
1,498 - 1,984 cm3

General
Model Year
2,024 - 2,025
Model Year
2,025 - 2,026
CO2 Efficiency Class
B, D, G, E
CO2 Efficiency Class
E, G, B, F
Brand
Mercedes-Benz
Brand
Audi
What drivetrain options does the Mercedes A Class Saloon have?

The Mercedes A Class Saloon 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.