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Audi Q3 vs Mercedes A Class comparison

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

Audi Q3 vs Mercedes A Class: Key differences

Audi Q3

5 (1 Reviews)
rate
  • markedly more efficient
  • noticeably more electric range
  • noticeably more trunk space

Mercedes A Class

  • a bit cheaper
  • noticeably more power
  • substantially quicker 0–100 km/h
  • somewhat lighter

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

Q3

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 markedly 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 noticeably more range – reaching up to 119 km, about 34 km more than the Mercedes A Class.

A 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 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 substantially 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 a bit more torque with 500 Nm compared to 400 Nm. That’s about 100 Nm more.

Q3

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

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 noticeably 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 marginally 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 has the upper hand 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 : Plugin Hybrid, Petrol MHEV, Diesel, 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
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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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The Audi Q3 plays the compact‑premium role perfectly — a hushed, well‑built cabin, polished manners and a level of refinement that makes the higher price feel like an investment in peace of mind. The VW T‑Roc, meanwhile, is the cheekier, better‑value sibling: bolder styling, sprightlier handling …
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi Q3

The Audi Q3 feels like a grown-up compact SUV with premium polish and city-friendly agility, the sort of car that makes weekend escapes and daily commutes equally satisfying. Inside, you get quality materials and smart packaging that keep things practical without skimping on style, so it’s an easy pick for buyers who want luxury without the drama.

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Reviews Audi Q3

5 (1 Reviews)
rate
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.

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

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

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Audi Q3
Mercedes A Class

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

Dimensions and Body
Body Type
SUV
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,635 - 1,900 kg
Curb weight
1,440 - 1,695 kg
Trunk capacity
375 - 488 L
Trunk capacity
310 - 350 L
Length
-
Length
4,428 mm
Width
1,859 mm
Width
1,796 - 1,850 mm
Height
-
Height
1,423 mm
Max trunk capacity
-
Max trunk capacity
1,125 L
Payload
505 - 535 kg
Payload
450 - 485 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol
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
150 - 272 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
5.7 - 9.2 s
Acceleration 0-100km/h
3.9 - 9.7 s
Max Speed
-
Max Speed
225 km/h
Torque
250 - 400 Nm
Torque
200 - 500 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
110 - 200 kW
Power kW
85 - 310 kW
Engine capacity
1,498 - 1,984 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,025
Model Year
2,024 - 2,025
CO2 Efficiency Class
E, G, B
CO2 Efficiency Class
B, D, E, G
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi Q3 have?

The Audi Q3 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.