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Mazda 3 Sedan 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 Sedan or Porsche 911 Convertible?

Mazda 3 Sedan vs Porsche 911 Convertible: Key differences

Mazda 3 Sedan

4.7 (1 Reviews)
rate
  • substantially cheaper
  • substantially more efficient
  • slightly lighter
  • slightly more trunk space
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Porsche 911 Convertible

  • considerably more power
  • significantly quicker 0–100 km/h
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By Achim Sedelmaier

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

3 Sedan

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mazda 3 Sedan is substantially cheaper – starting at 25,000 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 113,023 £.

Fuel consumption also shows a difference: the Mazda 3 Sedan uses 5.5 L/100km and is substantially more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 5 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 considerably 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 Sedan takes 8.1 s. That’s about 5.5 s quicker.

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

Space and Everyday Use:

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

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

In terms of curb weight, Mazda 3 Sedan is slightly lighter – 1,420 kg compared to 1,572 kg. The difference is around 152 kg.

Looking at boot space, the Mazda 3 Sedan offers slightly more boot space – 450 L compared to 373 L. That’s a difference of about 77 L.

When it comes to payload, the Mazda 3 Sedan carries noticeably more – 481 kg compared to 345 kg. That’s a difference of about 136 kg.

Who wins the race in the data check?

The Mazda 3 Sedan is clearly superior overall 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 Sedan

Mazda 3 Sedan

  • Engine Type : Petrol MHEV
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 140 - 186 HP
  • Consumption L/100km : 5.5 - 6.1 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 Sedan

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.

details
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Reviews Mazda 3 Sedan

4.7 (1 Reviews)
rate

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

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

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Porsche 911 Convertible

Costs and Consumption
Price
25,000 - 34,200 £
Price
138,000 - 244,500 £
Consumption L/100km
5.5 - 6.1 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
123 - 135 g/km
co2
237 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
-
Doors
-
Curb weight
1,420 - 1,492 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
450 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
467 - 481 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
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
140 - 186 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
8.1 - 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
2025
Model Year
2,024 - 2,026
CO2 Efficiency Class
D
CO2 Efficiency Class
G
Brand
Mazda
Brand
Porsche
What drivetrain options does the Mazda 3 Sedan have?

The Mazda 3 Sedan is offered with Front-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.