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BMW 4 Series Convertible vs Porsche Cayenne comparison

Compare performance (530 HP vs 1,156 HP), boot space and price (52,100 £ vs 90,200 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or Porsche Cayenne?

BMW 4 Series Convertible vs Porsche Cayenne: Key differences

BMW 4 Series Convertible

  • clearly cheaper
  • noticeably lighter
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Porsche Cayenne

3.2 (3 Reviews)
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  • substantially more power
  • noticeably more efficient
  • significantly quicker 0–100 km/h
  • significantly more trunk space
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By Achim Sedelmaier

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

4 Series Convertible

Costs and Efficiency:

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

BMW 4 Series Convertible is clearly cheaper – starting at 52,100 £ , while the Porsche Cayenne costs 90,200 £ . That’s a price difference of around 38,057 £.

Fuel consumption also shows a difference: the Porsche Cayenne uses 4 L/100km and is noticeably more efficient than the BMW 4 Series Convertible with 5.2 L/100km. The difference is about 1.2 L/100km.

Cayenne

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Porsche Cayenne offers substantially more power – delivering 1,156 HP compared to 530 HP. That’s roughly 626 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayenne is significantly quicker – completing the sprint in 2.5 s, while the BMW 4 Series Convertible takes 3.7 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Porsche Cayenne delivers substantially more torque with 1,500 Nm compared to 700 Nm. That’s about 800 Nm more.

4 Series Convertible

Space and Everyday Use:

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

Seats: Porsche Cayenne offers more seats – 5 vs 4.

In terms of curb weight, BMW 4 Series Convertible is noticeably lighter – 1,765 kg compared to 2,130 kg. The difference is around 365 kg.

Looking at boot space, the Porsche Cayenne offers significantly more boot space – 781 L compared to 385 L. That’s a difference of about 396 L.

When it comes to payload, the Porsche Cayenne carries considerably more – 705 kg compared to 420 kg. That’s a difference of about 285 kg.

Who wins the race in the data check?

The Porsche Cayenne 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 £90,200
Cayenne

Porsche Cayenne

  • Engine Type : Petrol, Plugin Hybrid, Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 353 - 1,156 HP
  • Consumption L/100km : 4 - 11 L/100km
  • Consumption kWh/100km : 18.9 - 20.6 kWh/100km
  • Electric Range : 74 - 668 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 4 Series Convertible

The BMW 4 Series Convertible blends coupe-like elegance with open-top drama, its sleek profile and distinctive grille demanding attention whether the roof’s up or down. Behind the wheel it serves up taut handling and a refined ride, making it a rewarding choice for drivers who want sporty character without sacrificing everyday comfort — and yes, it looks spectacular when you drop the top.

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Reviews BMW 4 Series Convertible

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Porsche Cayenne

Few SUVs blend athletic poise and Teutonic precision like the Porsche Cayenne, putting genuine sports‑car feeling into a roomy, everyday package. If you want a practical family hauler that still makes you grin every time you merge, the Cayenne delivers — turning errands into an excuse for a spirited drive.

details
P17_0701
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Reviews Porsche Cayenne

3.2 (3 Reviews)
rate

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

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BMW 4 Series Convertible
Porsche Cayenne

Costs and Consumption
Price
52,100 - 96,600 £
Price
90,200 - 144,400 £
Consumption L/100km
5.2 - 10.2 L/100km
Consumption L/100km
4 - 11 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
18.9 - 20.6 kWh/100km
Electric Range
-
Electric Range
74 - 668 km
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
0 - 249 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
SUV
Seats
4
Seats
4 - 5
Doors
-
Doors
-
Curb weight
1,765 - 2,055 kg
Curb weight
2,130 - 2,725 kg
Trunk capacity
385 L
Trunk capacity
434 - 781 L
Length
-
Length
-
Width
1,852 - 1,887 mm
Width
1,980 - 1,983 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
345 - 420 kg
Payload
525 - 705 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Petrol, Plugin Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
184 - 530 HP
Power HP
353 - 1,156 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
-
Max Speed
-
Torque
300 - 700 Nm
Torque
500 - 1,500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
135 - 390 kW
Power kW
260 - 850 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
2,995 cm3

General
Model Year
2,024 - 2,025
Model Year
2,025 - 2,026
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
G, B, A
Brand
BMW
Brand
Porsche
What drive types are available for the BMW 4 Series Convertible?

The BMW 4 Series Convertible is available as 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.