BMW M6 Convertible (2015)BMW Z4 Roadster sDrive20i (2014)
Top 29%67 points
Top 29%
Top 100%0 points
Top 100%
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Top specs, facts and figures

BMW M6 Convertible (2015) vs BMW Z4 Roadster sDrive20i (2014): 39 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.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
24% have it

2. 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

3. Has Bluetooth

Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
89% have it

4. faster acceleration (0-100)

The time it takes for the car to accelerate from 0-100 kilometres per hour.
4.3s
Bugatti Veyron 16.4 Grand Sport (2013): 2.5s
6.9s

5. weight

575kg lighter.
2.04t
Nissan Note Advance CVT (2015): 1.5kg
1.47t

6. faster top speed

The fastest speed that the car can reach.
249km/h
Hennessey Venom GT (2014): 447km/h
235km/h

7. better fuel economy (highway)

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.
10.7l/100 km
Ferrari 458 Spider (2013): 0l/100 km
5.6l/100 km

8. higher maximum torque

Torque is a measurement of an engine’s power, closely related to horsepower. More torque indicates a more powerful car, and is also a good indication of its acceleration.
678Nm
Bugatti Veyron 16.4 Grand Sport (2013): 1250Nm
270Nm

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.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
67% have it

10. 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.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
36% have it

11. 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.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
47% have it

12. 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.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
47% have it

13. USB ports

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

14. Has a turbocharged engine

A turbocharger compresses the air entering the cylinders, allowing more air (and therefore more fuel) to be added - resulting in a more powerful explosion. This leads to an increase in horsepower without increasing the size and weight of the engine.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
58% have it

16. Has stolen vehicle tracking system

The vehicle has a tracking system that utilises GPS, allowing you to locate it in case it is stolen.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
24% have it

17. 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

18. 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

19. 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.
4.4l
SRT Viper (2014): 8.4l
3l

20. Has ISOFIX/LATCH

ISOFIX (also known as LATCH) is a standard system of attachment points for child safety seats, allowing them to be fitted quickly and safely.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
62% have it

21. 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).
2.85m
Toyota Tundra SR5 (2014): 3.7m
2.5m

22. 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.
BMW M6 Convertible (2015)
BMW Z4 Roadster sDrive20i (2014)
71% have it

23. shorter length

663mm shorter length.
4.9m
Renault Twizy EV 13kW (2014): 2.34m
4.24m

24. height

78mm shorter.
1.37m
Volvo XC70 (2015): 917mm
1.29m

25. width

31mm narrower.
1.92m
Peugeot 208 Allure (2014): 1m
1.95m

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