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Mazda CX-5 vs Porsche 911 Convertible comparison

Compare performance (141 HP vs 711 HP), boot space and price (30,000 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – Mazda CX-5 or Porsche 911 Convertible?

Mazda CX-5 vs Porsche 911 Convertible: Key differences

Mazda CX-5

4.7 (8 Reviews)
rate
  • significantly cheaper
  • substantially more efficient
  • somewhat more trunk space
details

Porsche 911 Convertible

  • significantly more power
  • clearly quicker 0–100 km/h
  • very slightly lighter
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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

CX-5

Costs and Efficiency:

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

Mazda CX-5 is significantly cheaper – starting at 30,000 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 108,009 £.

Fuel consumption also shows a difference: the Mazda CX-5 uses 7 L/100km and is substantially more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 3.5 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 significantly more power – delivering 711 HP compared to 141 HP. That’s roughly 570 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is clearly quicker – completing the sprint in 2.6 s, while the Mazda CX-5 takes 10.5 s. That’s about 7.9 s quicker.

There’s also a difference in torque: the Porsche 911 Convertible delivers clearly more torque with 800 Nm compared to 238 Nm. That’s about 562 Nm more.

CX-5

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Seats: Mazda CX-5 offers more seats – 5 vs 4.

In terms of curb weight, Porsche 911 Convertible is very slightly lighter – 1,572 kg compared to 1,629 kg. The difference is around 57 kg.

Looking at boot space, the Mazda CX-5 offers somewhat more boot space – 466 L compared to 373 L. That’s a difference of about 93 L.

When it comes to payload, the Mazda CX-5 carries clearly more – 601 kg compared to 345 kg. That’s a difference of about 256 kg.

Who wins the race in the data check?

The Porsche 911 Convertible 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 £138,000
911 Convertible

Porsche 911 Convertible

  • Engine Type : Petrol, Full Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 394 - 711 HP
  • Consumption L/100km : 10.5 - 13.7 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 CX-5

The Mazda CX-5 blends elegant, athletic styling with a surprisingly engaging driving character, turning routine trips into small, satisfying adventures. Inside it feels thoughtfully built and comfortable, offering sensible practicality and a premium feel that punches above its price.

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Reviews Mazda CX-5

4.7 (8 Reviews)
rate
Bengt
25 Jan 2026, 14:05:09

I've owned several Volvos, but I drive a Mazda now and would never switch back.

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

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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Mazda CX-5
Porsche 911 Convertible

Costs and Consumption
Price
30,000 - 39,500 £
Price
138,000 - 244,500 £
Consumption L/100km
7 - 7.5 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
157 - 169 g/km
co2
237 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
-
Doors
-
Curb weight
1,629 - 1,671 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
466 L
Trunk capacity
163 - 373 L
Length
-
Length
-
Width
1,860 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
566 - 601 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
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
141 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
10.5 - 10.9 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
-
Max Speed
-
Torque
238 Nm
Torque
450 - 800 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
104 kW
Power kW
290 - 523 kW
Engine capacity
2,488 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2025
Model Year
2,024 - 2,026
CO2 Efficiency Class
F
CO2 Efficiency Class
G
Brand
Mazda
Brand
Porsche
Is the Mazda CX-5 offered with different drivetrains?

The Mazda CX-5 is available as 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.