91points

BMW Z4 Roadster sDrive20i (2014)

52points

Mercedes-Benz SLK-Class Convertible 200 (2015)

Comparison winner
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25 facts in comparison

BMW Z4 Roadster sDrive20i (2014) vs Mercedes-Benz SLK-Class Convertible 200 (2015)

BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)
91
points
52
points

Why is BMW Z4 Roadster sDrive20i (2014) better than Mercedes-Benz SLK-Class Convertible 200 (2015)?

  • Has dual-clutch transmission
  • 0.4s faster acceleration (0-100)
    6.9svs7.3s
  • 0.4l/100 km better fuel economy (city)
    8.9l/100 kmvs9.3l/100 km
  • 11mm shorter
    1.29mvs1302mm
  • 55mm narrower
    1.95mvs2006mm
  • Has fully independent suspension
  • Has smart key as standard
  • Has in-car system

Why is Mercedes-Benz SLK-Class Convertible 200 (2015) better than BMW Z4 Roadster sDrive20i (2014)?

  • 2km/h faster top speed
    237km/hvs235km/h
  • 0.3l/100 km better fuel economy (highway)
    5.3l/100 kmvs5.6l/100 km
  • 105mm shorter length
    4.13mvs4239mm
  • 0.1m smaller turn radius
    10.6mvs10.7m
  • 9.09% larger fuel tank
    60lvs55l

Top specs, facts and figures

General info

1.Has dual-clutch transmission
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)

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.

2.Has rear-wheel drive
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)

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.

3. smaller turn radius

10.7m

10.6m

The turn radius indicates the smallest circular turn a car can make. With a smaller turn radius it is easier to perform a U-turn in one attempt instead of having to reverse back and forth in order to turn around.

Best

Scion iQ2 (2014)

4.2m

4.Has fully independent suspension
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)

This allows all four wheels to move up and down independently, providing a smoother ride when, for example, going over bumps in the road.

5. longer basic warranty (years)

4yrs

4yrs

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.

Best

Nissan Versa Note S (2014)

Unlimited yrs

6.Has a petrol (gasoline) engine
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)

A petrol (gasoline) engine offers several advantages over diesel. For example the engines tend to be lighter and cheaper than their diesel counterparts. Petrol engines also tend to have higher horsepower, and the fuel is more readily available.

Dimensions

1.weight

1.47t

1.47t

Best

Mitsubishi ASX (2017)

1.32kg

2. shorter length

4.24m

4.13m

Best

Renault Twizy EV 13kW (2014)

2.34m

3.height

1.29m

1.3m

Best

Volvo XC70 (2015)

917mm

4.width

1.95m

2.01m

Best

Peugeot 208 Allure (2014)

1m

Speed

1. faster top speed

235km/h

237km/h

The fastest speed that the car can reach.

Best

Hennessey Venom GT (2014)

447km/h

2. faster acceleration (0-100)

6.9s

7.3s

The time it takes for the car to accelerate from 0-100 kilometres per hour.

Best

Tesla Roadster

1.9s

Engine

1. more cylinders

4

4

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.

Best

Bugatti Veyron 16.4 Grand Sport (2013)

16

2. better fuel economy (highway)

5.6l/100 km

5.3l/100 km

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.

Best

Ferrari 458 Spider (2013)

0l/100 km

3. more valves

16

16

An intake valve allows the air/fuel mixture to enter the combustion chamber. An engine with more valves tends to increase performance.

Best

Bugatti Veyron 16.4 Grand Sport (2013)

64

4. more horsepower

184hp

184hp

Horsepower is the most common unit for measuring the power of an engine.

Best

Hennessey Venom GT (2014)

1244hp

5. higher maximum torque

270Nm

250Nm

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.

Best

Bugatti Veyron 16.4 Grand Sport (2013)

1250Nm

6. better fuel economy (city)

8.9l/100 km

9.3l/100 km

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.

Best

Ferrari 458 Spider (2013)

0l/100 km

Features

1.Has Bluetooth
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)

Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.

2.Has smart key as standard
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)

A smart key is a wireless key that offers several benefits over a traditional key. For example when you approach the car the doors will automatically unlock, and you can turn the engine on with the press of a button.

3.Has in-car system
BMW Z4 Roadster sDrive20i (2014)
Mercedes-Benz SLK-Class Convertible 200 (2015)

An in-car system (eg. Ford SYNC, Apple CarPlay) gives you extra functionality, such as navigation, taking phone calls (when linked to your smartphone) and controlling music.

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