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Mazda 3 Hatchback vs Porsche 911 Convertible comparison

Compare performance (186 HP vs 711 HP), boot space and price (25,000 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – Mazda 3 Hatchback or Porsche 911 Convertible?

Mazda 3 Hatchback vs Porsche 911 Convertible: Key differences

Mazda 3 Hatchback

5 (1 Reviews)
rate
  • substantially cheaper
  • considerably more efficient
  • moderately lighter
details

Porsche 911 Convertible

  • substantially more power
  • significantly quicker 0–100 km/h
  • marginally 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

3 Hatchback

Costs and Efficiency:

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

Mazda 3 Hatchback is substantially cheaper – starting at 25,000 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 112,980 £.

Fuel consumption also shows a difference: the Mazda 3 Hatchback uses 5.6 L/100km and is considerably more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 4.9 L/100km.

911 Convertible

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 Porsche 911 Convertible offers substantially more power – delivering 711 HP compared to 186 HP. That’s roughly 525 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is significantly quicker – completing the sprint in 2.6 s, while the Mazda 3 Hatchback takes 8 s. That’s about 5.4 s quicker.

There’s also a difference in torque: the Porsche 911 Convertible delivers considerably more torque with 800 Nm compared to 240 Nm. That’s about 560 Nm more.

3 Hatchback

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: Mazda 3 Hatchback offers more seats – 5 vs 4.

In terms of curb weight, Mazda 3 Hatchback is moderately lighter – 1,417 kg compared to 1,572 kg. The difference is around 155 kg.

Looking at boot space, the Porsche 911 Convertible offers marginally more boot space – 373 L compared to 351 L. That’s a difference of about 22 L.

When it comes to payload, the Mazda 3 Hatchback carries visibly more – 502 kg compared to 345 kg. That’s a difference of about 157 kg.

Who wins the race in the data check?

The Mazda 3 Hatchback 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.

from £25,000
3 Hatchback

Mazda 3 Hatchback

  • Engine Type Petrol MHEV
  • Transmission Manuel, Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 140 - 186 HP
  • Consumption L/100km 5.6 - 6.5 L/100km
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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.

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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

Porsche 911 Convertible

The Porsche 911 Cabriolet transforms the iconic silhouette into an open‑air weapon, offering roof-down glamour and razor-sharp handling that still feels perfectly composed on normal roads. It’s the kind of car that serves daily duties with surprising ease while delivering intoxicating engine music and a grin factor that makes every trip feel like a small victory.

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Reviews Porsche 911 Convertible

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

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Costs and Consumption
Price
25,000 - 36,000 £
Price
138,000 - 244,500 £
Consumption L/100km
5.6 - 6.5 L/100km
Consumption L/100km
10.5 - 13.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
126 - 146 g/km
co2
237 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
-
Doors
-
Curb weight
1,417 - 1,529 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
351 L
Trunk capacity
163 - 373 L
Length
-
Length
-
Width
1,795 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
487 - 502 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Petrol, Full Hybrid
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
140 - 186 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
8 - 9.8 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
-
Max Speed
-
Torque
238 - 240 Nm
Torque
450 - 800 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
103 - 137 kW
Power kW
290 - 523 kW
Engine capacity
1,998 - 2,488 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2026
Model Year
2,024 - 2,026
CO2 Efficiency Class
D, E
CO2 Efficiency Class
G
Brand
Mazda
Brand
Porsche
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.