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Mazda 3 Sedan vs Vauxhall Astra - Differences and prices compared

Compare performance (186 HP vs 225 HP), boot space and price (25000 £ vs 25200 £ ) at a glance. Find out which car is the better choice for you – Mazda 3 Sedan or Vauxhall Astra?

Mazda 3 Sedan

4.7 (1 Reviews)
rate

Vauxhall Astra

4.7 (1 Reviews)
rate

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

Astra

Costs and Efficiency:

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

Mazda 3 Sedan has a barely noticeable advantage in terms of price – it starts at 25000 £ , while the Vauxhall Astra costs 25200 £ . That’s a price difference of around 214 £.

Fuel consumption also shows a difference: Vauxhall Astra manages with 2.20 L and is therefore clearly more efficient than the Mazda 3 Sedan with 5.50 L. The difference is about 3.30 L per 100 km.

Astra

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Vauxhall Astra has a to a small extent edge – offering 225 HP compared to 186 HP. That’s roughly 39 HP more horsepower.

In acceleration from 0 to 100 km/h, the Vauxhall Astra is hardly perceptible quicker – completing the sprint in 7.50 s, while the Mazda 3 Sedan takes 8.10 s. That’s about 0.60 s faster.

There’s also a difference in torque: Vauxhall Astra pulls noticeable stronger with 360 Nm compared to 240 Nm. That’s about 120 Nm difference.

Astra

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 curb weight, Vauxhall Astra is minimal lighter – 1341 kg compared to 1420 kg. The difference is around 79 kg.

In terms of boot space, the Mazda 3 Sedan offers minimal more room – 450 L compared to 422 L. That’s a difference of about 28 L.

When it comes to payload, Vauxhall Astra slight takes the win – 509 kg compared to 481 kg. That’s a difference of about 28 kg.

Who wins the race in the data check?

The Vauxhall Astra 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.

Mazda 3 Sedan
Vauxhall Astra

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £25,200
Astra

Vauxhall Astra

  • Engine Type : Petrol, Diesel, Electric, Petrol MHEV, Plugin Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 130 - 225 HP
  • Consumption L/100km : 2.2 - 6 L
  • Consumption kWh/100km : 15.3 - 15.4 kWh
  • Electric Range : 82 - 454 km
details

Mazda 3 Sedan

4.7 (1 Reviews)
rate

The Mazda 3 Sedan dresses like a compact premium car, with sculpted lines and an interior that punches well above its class. It rewards drivers with eager handling and a composed, comfortable ride that turns routine runs into something a bit more enjoyable — proof that style and substance can share the same key.

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Vauxhall Astra

4.7 (1 Reviews)
rate

The Opel Astra strikes a neat balance between everyday practicality and engaging handling, so the daily grind suddenly feels a bit less dull. Inside it's intelligently packaged with modern kit and comfortable seating, making it a very sensible pick for buyers who want a dependable hatchback that doesn't take itself too seriously.

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01_Opel-Astra-518263
05_Opel-Astra-518267
24_Opel-Astra-518297

Reviews Mazda 3 Sedan

4.7 (1 Reviews)
rate

Reviews Opel Astra

4.7 (1 Reviews)
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Mazda 3 Sedan
Vauxhall Astra

Costs and Consumption
Price
25000 - 34200 £
Price
25200 - 40500 £
Consumption L/100km
5.5 - 6.1 L
Consumption L/100km
2.2 - 6 L
Consumption kWh/100km
-
Consumption kWh/100km
15.3 - 15.4 kWh
Electric Range
-
Electric Range
82 - 454 km
Battery Capacity
-
Battery Capacity
51 kWh
co2
123 - 135 g/km
co2
0 - 135 g/km
Fuel tank capacity
-
Fuel tank capacity
52 L

Dimensions and Body
Body Type
Sedan
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1420 - 1492 kg
Curb weight
1341 - 1736 kg
Trunk capacity
450 L
Trunk capacity
310 - 422 L
Length
-
Length
4374 mm
Width
1795 mm
Width
1859 - 1860 mm
Height
-
Height
1441 - 1488 mm
Max trunk capacity
-
Max trunk capacity
1268 - 1339 L
Payload
467 - 481 kg
Payload
414 - 509 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Petrol, Diesel, Electric, Petrol MHEV, Plugin Hybrid
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Manual Gearbox, Automatic Gearbox, Reduction Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
140 - 186 HP
Power HP
130 - 225 HP
Acceleration 0-100km/h
8.1 - 9.8 s
Acceleration 0-100km/h
7.5 - 10.6 s
Max Speed
-
Max Speed
170 - 210 km/h
Torque
238 - 240 Nm
Torque
230 - 360 Nm
Number of Cylinders
4
Number of Cylinders
3 - 4
Power kW
103 - 137 kW
Power kW
96 - 165 kW
Engine capacity
1998 - 2488 cm3
Engine capacity
1199 - 1598 cm3

General
Model Year
2025
Model Year
2023 - 2026
CO2 Efficiency Class
D
CO2 Efficiency Class
D, A, C, B
Brand
Mazda
Brand
Vauxhall

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What drivetrain options does the Mazda 3 Sedan have?

The Mazda 3 Sedan is available as Front-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.