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BMW X5 vs Porsche Cayman comparison

Compare performance (625 HP vs 500 HP), boot space and price (77,100 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – BMW X5 or Porsche Cayman?

BMW X5 vs Porsche Cayman: Key differences

BMW X5

3.6 (1 Reviews)
rate
  • considerably cheaper
  • slightly more power
  • significantly more efficient
  • clearly more trunk space
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Porsche Cayman

  • slightly quicker 0–100 km/h
  • substantially 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

X5

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.

BMW X5 is considerably cheaper – starting at 77,100 £ , while the Porsche Cayman costs 136,000 £ . That’s a price difference of around 58,971 £.

Fuel consumption also shows a difference: the BMW X5 uses 3 L/100km and is significantly more efficient than the Porsche Cayman with 13 L/100km. The difference is about 10 L/100km.

Cayman

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the BMW X5 offers slightly more power – delivering 625 HP compared to 500 HP. That’s roughly 125 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayman is slightly quicker – completing the sprint in 3.4 s, while the BMW X5 takes 3.9 s. That’s about 0.5 s quicker.

There’s also a difference in torque: the BMW X5 delivers markedly more torque with 750 Nm compared to 450 Nm. That’s about 300 Nm more.

X5

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: BMW X5 offers more seats – 5 vs 2.

In terms of curb weight, Porsche Cayman is substantially lighter – 1,490 kg compared to 2,240 kg. The difference is around 750 kg.

Looking at boot space, the BMW X5 offers clearly more boot space – 650 L compared to 184 L. That’s a difference of about 466 L.

When it comes to payload, the BMW X5 carries clearly more – 705 kg compared to 281 kg. That’s a difference of about 424 kg.

Who wins the race in the data check?

The BMW X5 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 £77,100
X5

BMW X5

  • Engine Type : Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 298 - 625 HP
  • Consumption L/100km : 3 - 12.8 L/100km
  • Electric Range : 105 km
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Porsche Cayman

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW X5

The BMW X5 blends athletic handling with a roomy, premium interior, feeling equally at home on twisty country roads and the school-run car park. Its executive-lounge cabin and confident road presence make it a tempting choice for buyers who want comfort, capability and just a little bit of bragging rights.

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Reviews BMW X5

3.6 (1 Reviews)
rate
Kazibwe Patrick
21 Apr 2026, 11:42:53

Very Good

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 Cayman

The Porsche Cayman stands out as a quintessential sports car, blending sleek design with dynamic handling. Its mid-engine layout provides an excellent balance and sharp agility that driving enthusiasts crave. Inside, the Cayman offers a refined and driver-focused interior, ensuring that every journey is an exhilarating experience.

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Reviews Porsche Cayman

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

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Porsche Cayman

Costs and Consumption
Price
77,100 - 143,500 £
Price
136,000 £
Consumption L/100km
3 - 12.8 L/100km
Consumption L/100km
13 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
105 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
68 - 289 g/km
co2
295 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
SUV
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
2
Curb weight
2,240 - 2,495 kg
Curb weight
1,490 kg
Trunk capacity
500 - 650 L
Trunk capacity
184 L
Length
-
Length
4,456 mm
Width
2,004 - 2,015 mm
Width
1,822 mm
Height
-
Height
1,267 mm
Max trunk capacity
-
Max trunk capacity
272 L
Payload
565 - 705 kg
Payload
281 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
298 - 625 HP
Power HP
500 HP
Acceleration 0-100km/h
3.9 - 6.1 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
315 km/h
Torque
540 - 750 Nm
Torque
450 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6
Power kW
219 - 460 kW
Power kW
368 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
3,996 cm3

General
Model Year
2025
Model Year
2021
CO2 Efficiency Class
G, B
CO2 Efficiency Class
G
Brand
BMW
Brand
Porsche
What drive types are available for the BMW X5?

The BMW X5 is available as 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.