Comfort and Convenience
Preferred cabin temperature is one of the clearest differences between passengers: the same air feels mild to one person and cold to another, partly because clothing and seating position change how airflow reaches them.
Safety and Driver Assistance
Before setting off in a car you have not driven recently, it helps to check mirror positions and locate the gear selector, so the first few minutes are not spent hunting for something in the cabin.
Multimedia and Connectivity
Audio can arrive from different sources — radio, a stored file, or streaming over the phone's data — and they fail differently: a weak mobile signal interrupts streaming while radio keeps playing.