Porsche Cayman 2016 vs BMW 8 series 2018
| Gearbox: | Automatic | Automatic | |
|---|---|---|---|
| Engine: | 2.0 Petrol | 3.0 Diesel | |
| Petrol engines (Porsche Cayman) are generally quieter, smoother, and better suited for short trips due to quicker warm-up times. Diesel (BMW 8 series) engines, on the other hand, offer superior fuel efficiency and torque, making them ideal for long-distance driving and heavy loads. Read more: Petrol vs. Diesel: Fuel Economy and Key Differences. | |||
Performance | |||
| Power: | 300 HP | 320 HP | |
| Torque: | 380 NM | 680 NM | |
| Acceleration 0-100 km/h: | 4.9 seconds | 4.9 seconds | |
| Porsche Cayman engine produces 20 HP less power than BMW 8 series, whereas torque is 300 NM less than BMW 8 series. | |||
Fuel consumption | |||
| Fuel consumption (l/100km): | 6.9 | 6.2 | |
| 
The BMW 8 series is a better choice when it comes to fuel economy. Porsche Cayman consumes 0.7 litres more fuel per 100 km than the BMW 8 series, which means that if you drive 15,000 km in a year, the Porsche Cayman could require 105 litres more fuel.  | |||
| Fuel tank capacity: | 54 litres | 68 litres | |
| Full fuel tank distance: | 780 km in combined cycle | 1090 km in combined cycle | |
| 940 km on highway | 1250 km on highway | ||
| BMW 8 series gets more mileage on one fuel tank. | |||
| Read the article "Fuel Efficiency: How to Reduce Fuel Consumption" to learn more about fuel economy. | |||
Drive type | |||
| Wheel drive type: | Rear wheel drive (RWD) | All wheel drive (AWD, 4x4) | |
Dimensions | |||
| Length: | 4.38 m | 4.85 m | |
| Width: | 1.80 m | 1.90 m | |
| Height: | 1.30 m | 1.35 m | |
| 
Porsche Cayman is smaller. Porsche Cayman is 47 cm shorter than the BMW 8 series, 10 cm narrower, while the height of Porsche Cayman is 5 cm lower.  | |||
| Trunk capacity: | 150 litres | 420 litres | |
| 
BMW 8 series has more luggage space. Porsche Cayman has 270 litres less trunk space than the BMW 8 series.  | |||
| Turning diameter: | no data | 11.9 meters | |
| Gross weight (kg): | 1`685 | 2`370 | |
| Safety: | no data | no data | |
| Quality: | no data | no data | |
| Average price (€): | 86 400 | 57 000 | |
| Pros and Cons: | 
    
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