Comfort and Convenience
Preferred cabin temperature is a good example: passengers rarely agree. Height, clothing, how long the trip lasts and whether someone sits in sun or shade all pull the setting in different directions.
Safety and Driver Assistance
It is worth spending a few minutes with lights, wipers and mirrors while parked. Weather can change without warning, and knowing where things are beforehand means one less thing to work out once moving.
Multimedia and Connectivity
Keeping a phone charged on the move is its own need, separate from playing music or taking calls. If a charging point is available, a suitable cable and a stable place to rest the phone matter too.