See also:

Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

Bluetooth audio
Overview> It is possible to use Bluetooth to play music files from external devices, e.g. audio devices or mobile phones. Using a mobile phone as an audio source. > Bluetooth® is a registere ...

The concept
This system projects important information into the driver's field of vision, e.g., the speed. In this way, the driver can get information without averting his or her eyes from the road. ...