See also:

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. ...

Radio
When the same radio source is selected in the front and rear (e.g., FM/AM), the same radio station is played. Operation is the same as for the front radio. ...

Notes
Always make sure that safety belts are being worn by all occupants before driving away. Although airbags enhance safety by providing added protection, they are not a substitute for safety belts ...