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BMW Z4 vs Porsche Cayenne comparison

Compare performance (340 HP vs 1,156 HP), boot space and price (43,500 £ vs 90,200 £ ) at a glance. Find out which car is the better choice for you – BMW Z4 or Porsche Cayenne?

BMW Z4 vs Porsche Cayenne: Key differences

BMW Z4

4.4 (1 Reviews)
rate
  • clearly cheaper
  • clearly lighter
details

Porsche Cayenne

3.3 (2 Reviews)
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  • considerably more power
  • substantially more efficient
  • significantly quicker 0–100 km/h
  • considerably 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

Z4

Costs and Efficiency:

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

BMW Z4 is clearly cheaper – starting at 43,500 £ , while the Porsche Cayenne costs 90,200 £ . That’s a price difference of around 46,714 £.

Fuel consumption also shows a difference: the Porsche Cayenne uses 4 L/100km and is substantially more efficient than the BMW Z4 with 6.9 L/100km. The difference is about 2.9 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 considerably more power – delivering 1,156 HP compared to 340 HP. That’s roughly 816 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 Z4 takes 4.5 s. That’s about 2 s quicker.

There’s also a difference in torque: the Porsche Cayenne delivers significantly more torque with 1,500 Nm compared to 500 Nm. That’s about 1,000 Nm more.

Z4

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 2.

In terms of curb weight, BMW Z4 is clearly lighter – 1,510 kg compared to 2,130 kg. The difference is around 620 kg.

Looking at boot space, the Porsche Cayenne offers considerably more boot space – 781 L compared to 281 L. That’s a difference of about 500 L.

When it comes to payload, the Porsche Cayenne carries substantially more – 705 kg compared to 235 kg. That’s a difference of about 470 kg.

Who wins the race in the data check?

The Porsche Cayenne holds a decisive overall lead 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 : 19.5 - 20.6 kWh/100km
  • Electric Range : 74 - 651 km
details

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BMW Z4
Porsche Cayenne

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW Z4

The BMW Z4 is a taut, road-hugging roadster that pairs elegant, low-slung styling with a roof you can drop on a sunny whim, delivering that pure, wind-in-your-hair driving thrill few cars manage to match. It’s an ideal weekend companion for drivers who prefer engagement over practicality — bring good shoes rather than a lot of luggage, and you’ll get a grin every time you turn the wheel.

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P90479454_highRes_bmw-z4-m40i-09-2022
P90479457_highRes_bmw-z4-m40i-09-2022
P90479470_highRes_bmw-z4-m40i-09-2022
P90479471_highRes_bmw-z4-m40i-09-2022

Reviews BMW Z4

4.4 (1 Reviews)
rate
Maingard
26 Apr 2026, 13:19:10

Responsive car, very high-performing, very agile in corners.

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

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
P17_0780
P17_0777
P17_0776
P17_0784

Reviews Porsche Cayenne

3.3 (2 Reviews)
rate

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

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BMW Z4
Porsche Cayenne

Costs and Consumption
Price
43,500 - 65,300 £
Price
90,200 - 141,900 £
Consumption L/100km
6.9 - 8.5 L/100km
Consumption L/100km
4 - 11 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
19.5 - 20.6 kWh/100km
Electric Range
-
Electric Range
74 - 651 km
Battery Capacity
-
Battery Capacity
-
co2
157 - 191 g/km
co2
0 - 249 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
SUV
Seats
2
Seats
4 - 5
Doors
-
Doors
-
Curb weight
1,510 - 1,640 kg
Curb weight
2,130 - 2,720 kg
Trunk capacity
281 L
Trunk capacity
434 - 781 L
Length
-
Length
-
Width
1,864 mm
Width
1,980 - 1,983 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
215 - 235 kg
Payload
550 - 705 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Petrol, Plugin Hybrid, Electric
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
197 - 340 HP
Power HP
353 - 1,156 HP
Acceleration 0-100km/h
4.5 - 6.8 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
-
Max Speed
-
Torque
320 - 500 Nm
Torque
500 - 1,500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
145 - 250 kW
Power kW
260 - 850 kW
Engine capacity
1,998 - 2,998 cm3
Engine capacity
2,995 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
F, G
CO2 Efficiency Class
G, B, A
Brand
BMW
Brand
Porsche
Is the BMW Z4 offered with different drivetrains?

The BMW Z4 is available as Rear-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.