Comfort and Convenience
Preferred cabin temperature is a good example: the same setting can feel warm to one person and cool to another, since clothing, time of day and simple personal tolerance all differ between the people sharing a journey.
Safety and Driver Assistance
A few minutes spent locating the main switches while parked is time well used. Anything learned before setting off is one less thing to work out while the car is already moving.
Multimedia and Connectivity
Keeping a phone charged on a long day matters in its own right, separate from calls or music: a device used for navigation or tickets should still have power when the journey ends.