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Porsche 911 Convertible vs Mazda 3 Sedan comparison

Compare performance (711 HP vs 186 HP), boot space and price (138,000 £ vs 25,400 £ ) at a glance. Find out which car is the better choice for you – Porsche 911 Convertible or Mazda 3 Sedan?

Porsche 911 Convertible vs Mazda 3 Sedan: Key differences

Porsche 911 Convertible

  • considerably more power
  • substantially quicker 0–100 km/h
details

Mazda 3 Sedan

4.7 (1 Reviews)
rate
  • considerably cheaper
  • substantially more efficient
  • somewhat lighter
  • a bit more trunk space
details

By Achim Sedelmaier

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

911 Convertible

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mazda 3 Sedan is considerably cheaper – starting at 25,400 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 112,552 £.

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.

3 Sedan

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 substantially 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 substantially more torque with 800 Nm compared to 240 Nm. That’s about 560 Nm more.

Space and Everyday Use:

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

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

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

Looking at boot space, the Mazda 3 Sedan offers a bit 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 markedly more – 501 kg compared to 345 kg. That’s a difference of about 156 kg.

Who wins the race in the data check?

The Mazda 3 Sedan is far ahead 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 £25,400
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 L/100km
details

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Mazda 3 Sedan

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

details
serpimg_JYmvXq

Reviews Porsche 911 Convertible

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

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
serpimg_ikGkXb

Reviews Mazda 3 Sedan

4.7 (1 Reviews)
rate

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

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Porsche 911 Convertible
Mazda 3 Sedan

Costs and Consumption
Price
138,000 - 244,500 £
Price
25,400 - 34,700 £
Consumption L/100km
10.5 - 13.7 L/100km
Consumption L/100km
5.5 - 6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
237 - 310 g/km
co2
123 - 137 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Sedan
Seats
2 - 4
Seats
5
Doors
-
Doors
-
Curb weight
1,572 - 1,900 kg
Curb weight
1,417 - 1,468 kg
Trunk capacity
163 - 373 L
Trunk capacity
450 L
Length
-
Length
-
Width
1,852 - 1,900 mm
Width
1,795 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
195 - 345 kg
Payload
482 - 501 kg

Engine and Performance
Engine Type
Petrol, Full Hybrid
Engine Type
Petrol MHEV
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
394 - 711 HP
Power HP
140 - 186 HP
Acceleration 0-100km/h
2.6 - 4.7 s
Acceleration 0-100km/h
8.1 - 9.8 s
Max Speed
-
Max Speed
-
Torque
450 - 800 Nm
Torque
238 - 240 Nm
Number of Cylinders
6
Number of Cylinders
4
Power kW
290 - 523 kW
Power kW
103 - 137 kW
Engine capacity
2,981 - 3,996 cm3
Engine capacity
1,998 - 2,488 cm3

General
Model Year
2,024 - 2,026
Model Year
2026
CO2 Efficiency Class
G
CO2 Efficiency Class
D, E
Brand
Porsche
Brand
Mazda
What drivetrain options does the Porsche 911 Convertible have?

The Porsche 911 Convertible is offered with Rear-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.