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Mercedes A Class vs Audi Q3 comparison

Compare performance (421 HP vs 272 HP), boot space and price (32,600 £ vs 38,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes A Class or Audi Q3?

Mercedes A Class vs Audi Q3: Key differences

Mercedes A Class

2.7 (1 Reviews)
rate
  • a bit cheaper
  • noticeably more power
  • significantly quicker 0–100 km/h
  • somewhat lighter
details

Audi Q3

4.3 (4 Reviews)
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  • visibly more efficient
  • visibly more electric range
  • visibly more trunk space
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

A Class

Costs and Efficiency:

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

Mercedes A Class is a bit cheaper – starting at 32,600 £ , while the Audi Q3 costs 38,200 £ . That’s a price difference of around 5,660 £.

Fuel consumption also shows a difference: the Audi Q3 uses 1.7 L/100km and is visibly more efficient than the Mercedes A Class with 2.3 L/100km. The difference is about 0.6 L/100km.

As for electric range, the Audi Q3 offers visibly more range – reaching up to 119 km, about 34 km more than the Mercedes A Class.

Q3

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 A Class offers noticeably more power – delivering 421 HP compared to 272 HP. That’s roughly 149 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes A Class is significantly quicker – completing the sprint in 3.9 s, while the Audi Q3 takes 5.7 s. That’s about 1.8 s quicker.

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

A Class

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 is somewhat lighter – 1,440 kg compared to 1,635 kg. The difference is around 195 kg.

Looking at boot space, the Audi Q3 offers visibly more boot space – 488 L compared to 350 L. That’s a difference of about 138 L.

When it comes to payload, the Audi Q3 carries very slightly more – 535 kg compared to 485 kg. That’s a difference of about 50 kg.

Who wins the race in the data check?

The Mercedes A Class comes out modestly 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.

from £32,600
A Class

Mercedes A Class

  • Engine Type Petrol MHEV, Diesel, Plugin Hybrid, Petrol
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 421 HP
  • Consumption L/100km 2.3 - 9 L/100km
  • Electric Range 85 km
details

Frequently compared as well

Mercedes A Class
Mercedes B Class
VS
The Mercedes A‑Class is the sporty, tech‑savvy compact that thrills with sharp handling and a slick cockpit, while the Mercedes B‑Class trades a bit of attitude for towering practicality, roomier seats and a more useful boot. Choose the A‑Class if you want driving fun and style; pick the B‑Class if …
Audi Q3
VW T-Roc
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Choosing between the Audi Q3 and the VW T‑Roc comes down to whether you value Audi’s upmarket feel and refinement or the T‑Roc’s sharper pricing and practical versatility. This comparison focuses on real-world driving, interior quality, technology and running costs to help you decide which compact …
Mercedes A Class
Audi Q3

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes A Class

The Mercedes A‑Class arrives as a compact charmer that dresses premium materials and a cockpit full of screens in a tidy, city-friendly package, delivering surprising agility and poise. For buyers who want a luxury badge, clever tech and a car that's equally happy in tight streets or on a spirited country run, the A‑Class offers a grown-up feel with a cheeky streak.

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Reviews Mercedes A Class

2.7 (1 Reviews)
rate

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.

Frequently compared as well

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Mercedes A Class
MINI MINI
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Honda Civic
Mercedes A Class
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Mercedes A Class
Audi Q3

Costs and Consumption
Price
32,600 - 66,500 £
Price
38,200 - 52,900 £
Consumption L/100km
2.3 - 9 L/100km
Consumption L/100km
1.7 - 8.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
85 km
Electric Range
118 - 119 km
Battery Capacity
-
Battery Capacity
-
co2
53 - 205 g/km
co2
39 - 195 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,440 - 1,695 kg
Curb weight
1,635 - 1,900 kg
Trunk capacity
310 - 350 L
Trunk capacity
375 - 488 L
Length
-
Length
-
Width
1,796 - 1,850 mm
Width
1,859 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
450 - 485 kg
Payload
505 - 535 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel, Plugin Hybrid, Petrol
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 - 421 HP
Power HP
150 - 272 HP
Acceleration 0-100km/h
3.9 - 9.7 s
Acceleration 0-100km/h
5.7 - 9.2 s
Max Speed
-
Max Speed
-
Torque
200 - 500 Nm
Torque
250 - 400 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
85 - 310 kW
Power kW
110 - 200 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
1,498 - 1,984 cm3

General
Model Year
2025
Model Year
2,025 - 2,026
CO2 Efficiency Class
D, E, B, G
CO2 Efficiency Class
E, G, B, F
Brand
Mercedes-Benz
Brand
Audi
Is the Mercedes A Class offered with different drivetrains?

The Mercedes A Class is offered with 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.