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Mazda 3 Hatchback vs Mercedes A Class comparison

Compare performance (186 HP vs 421 HP), boot space and price (25,000 £ vs 32,600 £ ) at a glance. Find out which car is the better choice for you – Mazda 3 Hatchback or Mercedes A Class?

Mazda 3 Hatchback vs Mercedes A Class: Key differences

Mazda 3 Hatchback

5 (1 Reviews)
rate
  • visibly cheaper
  • marginally lighter
  • barely more trunk space
details

Mercedes A Class

3.6 (2 Reviews)
rate
  • substantially more power
  • substantially more efficient
  • substantially quicker 0–100 km/h
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

3 Hatchback

Costs and Efficiency:

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

Mazda 3 Hatchback is visibly cheaper – starting at 25,000 £ , while the Mercedes A Class costs 32,600 £ . That’s a price difference of around 7,548 £.

Fuel consumption also shows a difference: the Mercedes A Class uses 2.3 L/100km and is substantially more efficient than the Mazda 3 Hatchback with 5.6 L/100km. The difference is about 3.3 L/100km.

A Class

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 substantially more power – delivering 421 HP compared to 186 HP. That’s roughly 235 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 Mazda 3 Hatchback takes 8 s. That’s about 4.1 s quicker.

There’s also a difference in torque: the Mercedes A Class delivers substantially more torque with 500 Nm compared to 240 Nm. That’s about 260 Nm more.

3 Hatchback

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mazda 3 Hatchback is marginally lighter – 1,417 kg compared to 1,440 kg. The difference is around 23 kg.

Looking at boot space, the Mazda 3 Hatchback offers barely more boot space – 351 L compared to 350 L. That’s a difference of about 1 L.

When it comes to payload, the Mazda 3 Hatchback carries marginally more – 502 kg compared to 485 kg. That’s a difference of about 17 kg.

Who wins the race in the data check?

The Mercedes A Class stands well ahead of its rival 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 …
Mercedes A Class
Mercedes GLA
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The Mercedes A‑Class is the sharper, more driver-focused hatch that feels nimble and refined on twisty roads, while the Mercedes GLA trades a bit of agility for SUV practicality with a higher ride height, extra luggage space and a commanding view of the road. Pick the A‑Class for sporty handling, …
Mazda 3 Hatchback
Mercedes A Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mazda 3 Hatchback

The Mazda 3 hatchback blends elegant design with a surprisingly sporty drive, giving a cabin that feels more upscale than you’d expect for the segment. Practical enough for everyday life yet eager to entertain behind the wheel, it’s a smart, good-humored choice that makes even grocery runs feel like a mini escape.

details
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Reviews Mazda 3 Hatchback

5 (1 Reviews)
rate
j m
29 Jun 2026, 22:06:55

power
efficiency and low consumption
driving pleasure
wonderful e-drive and head-up projection display on the windshield

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.

details
18C0292_008
18C0292_010
18C0292_042
18C0291_067
18C0122_04

Reviews Mercedes A Class

3.6 (2 Reviews)
rate
Koldo
14 Jul 2026, 15:39:26

It's an elegant and understated car. Excellent material finishes; its two screens are very convenient for driving. Very good acceleration and braking response, great stability and good handling in corners. Good nighttime lighting, a safe, comfortable car and a pleasure to drive and travel in. My car is the A‑Class 200d. Kind regards.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Mazda 3 Hatchback
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Mazda 3 Hatchback
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Mazda 3 Hatchback
Mercedes A Class

Costs and Consumption
Price
25,000 - 36,000 £
Price
32,600 - 66,500 £
Consumption L/100km
5.6 - 6.5 L/100km
Consumption L/100km
2.3 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
85 km
Battery Capacity
-
Battery Capacity
-
co2
126 - 146 g/km
co2
53 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,417 - 1,529 kg
Curb weight
1,440 - 1,695 kg
Trunk capacity
351 L
Trunk capacity
310 - 350 L
Length
-
Length
-
Width
1,795 mm
Width
1,796 - 1,850 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
487 - 502 kg
Payload
450 - 485 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Petrol MHEV, Diesel, Plugin Hybrid, Petrol
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
140 - 186 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
8 - 9.8 s
Acceleration 0-100km/h
3.9 - 9.7 s
Max Speed
-
Max Speed
-
Torque
238 - 240 Nm
Torque
200 - 500 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
103 - 137 kW
Power kW
85 - 310 kW
Engine capacity
1,998 - 2,488 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
D, E
CO2 Efficiency Class
D, E, B, G
Brand
Mazda
Brand
Mercedes-Benz
What drive types are available for the Mazda 3 Hatchback?

Available configurations include 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.