Comfort and Convenience
Preferred cabin temperature varies from person to person, and the side of the car facing the sun warms faster than the shaded side, so passengers rarely agree on one setting.
Safety and Driver Assistance
Knowing where the hazard lights, wipers and demister sit before setting off saves searching later. A few minutes while parked is easier than working it out in moving traffic.
Multimedia and Connectivity
A phone running flat mid-journey is the common annoyance; where a charging point is available it keeps navigation going, which is separate from how calls or music reach the speakers.