Comfort and Convenience
Preferred cabin temperature is a clear example: some travel happily in cool air, others want warmth soon after setting off. Because everyone shares one space, the setting is often a matter of negotiation.
Safety and Driver Assistance
Spending a minute before departure locating the lights, wipers, mirror adjusters and hazard switch means less searching once underway. Preparation of this kind is simply knowing where things are before they are needed.
Multimedia and Connectivity
Keeping a phone charged across a long day is a practical concern in its own right, separate from music or calls. Where a charging point exists, its position decides how tidily a cable sits.