Porsche 918 Spyder (2015)BMW Z4 Roadster sDrive20i (2014)
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Top specs, facts and figures

Porsche 918 Spyder (2015) vs BMW Z4 Roadster sDrive20i (2014): 35 facts in comparison

1. Has dual-clutch transmission

A dual-clutch transmission (DCT) is an automated manual transmission that allows the driver to control gear-shifts themselves or to let the computer decide. Upshifts are extremely fast, resulting in smooth acceleration, and due to the uninterrupted power flow it also has the benefit of increasing fuel efficiency.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
24% have it

2. weight

230.97kg lighter.
1.7t
Nissan Note Advance CVT (2015): 1.5kg
1.47t

3. more cylinders

Although there are many aspects that determine the power, a higher number of cylinders is generally a good indication of the potential power of the engine.
8
Bugatti Veyron 16.4 Grand Sport (2013): 16
4

4. Has Bluetooth

Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
89% have it

5. faster top speed

The fastest speed that the car can reach.
344km/h
Hennessey Venom GT (2014): 447km/h
235km/h

6. faster acceleration (0-100)

The time it takes for the car to accelerate from 0-100 kilometres per hour.
2.5s
Bugatti Veyron 16.4 Grand Sport (2013): 2.5s
6.9s

7. Has height-adjustable seat belts

Height-adjustable seat belts permit passengers of different sizes to move the seat belt up or down for improved comfort. They are also especially useful for increasing the safety of children.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
47% have it

8. Has four-wheel drive

Four-wheel drive is a system where torque is distributed to all four wheels of the vehicle. It is beneficial in some circumstances such as providing increased traction in tricky weather conditions, but is most suited to off-road driving.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
18% have it

9. Has rear-wheel drive

Rear-wheel drive benefits from increased traction when accelerating, as the weight of the vehicle shifts to the rear over the drive wheels. The weight of the car is also more evenly distributed, resulting in improved handling.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
67% have it

10. larger fuel tank

A larger fuel tank means that you have to stop to refill less often.
70l
Ford Super Duty F-250 XL (2015): 132l
55l

11. larger engine size

This measurement is the total volume of all the engine's cylinders, also known as the engine displacement. This is one of many aspects of an engine that determine its horsepower, but generally speaking a greater size indicates more power.
4.6l
SRT Viper (2014): 8.4l
3l

12. width

287mm narrower.
1.66m
Peugeot 208 Allure (2014): 1m
1.95m

13. longer wheelbase

The wheelbase is the distance between the center of the front and rear wheels. A longer wheelbase provides the car with more stability and a smoother ride (although a shorter wheelbase can provide more responsive handling).
2.73m
Toyota Tundra SR5 (2014): 3.7m
2.5m

14. height

123mm shorter.
1.17m
Volvo XC70 (2015): 917mm
1.29m

16. better fuel economy (combined)

Fuel economy is a measurement of fuel efficiency, based on how far you can travel with a certain amount of petrol (gasoline). A lower fuel economy means the car will be cheaper to run.
3.1l/100 km
Porsche 918 Spyder (2015): 3.1l/100 km
6.8l/100 km

17. Has fully independent suspension

This allows all four wheels to move up and down independently, providing a smoother ride when, for example, going over bumps in the road.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
71% have it

18. more valves

An intake valve allows the air/fuel mixture to enter the combustion chamber. An engine with more valves tends to increase performance.
32
Bugatti Veyron 16.4 Grand Sport (2013): 64
16

19. Has air suspension

Air suspension offers a smoother ride than the traditional steel spring suspension. It is also often adjustable, allowing you to raise or lower it based on the type of driving you are doing.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
47% have it

20. more airbags

Airbags are designed to cushion occupants in the event of an impact. The standard number is around six as some cars now incorporate additional ones, such as knee airbags, side airbags and side curtain airbags.
8
Tesla Model X 75D (2016): 12
2

21. Has a rear-view camera

A rear-view camera (also known as a back-up camera) provides a view of behind the vehicle, helping to prevent accidents. It is particularly useful in vehicles with large blind spots such as pickup trucks.
Porsche 918 Spyder (2015)
BMW Z4 Roadster sDrive20i (2014)
36% have it

22. longer basic warranty (years)

The basic warranty of a car covers all aspects other than parts which are subject to normal wear and tear, such as windscreen wipers and brake pads. It lasts either a certain number of years or amount of kilometres driven.
4yrs
Nissan Versa Note S (2014): 160000yrs
4yrs

23. longer drivetrain warranty (years)

The drivetrain warranty covers parts of the car such as the engine, transmission, driveshaft etc. This is usually longer than the basic warranty. It lasts either a certain number of years or amount of kilometres driven.
4yrs
Kia Rondo Platinum (2014): 12yrs
4yrs

24. more horsepower

Horsepower is the most common unit for measuring the power of an engine.
887hp
Hennessey Venom GT (2014): 1244hp
184hp

25. USB ports

With more USB ports, you are able to connect more devices.
2
Porsche 918 Spyder (2015): 2
1

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