Comfort and Convenience
Preferred seating position and cabin temperature vary widely between people, because build, clothing and habit all differ. Passengers therefore tend to want settings that suit them individually rather than one arrangement chosen for everyone aboard.
Safety and Driver Assistance
Learning where the basic controls sit before setting off is simple preparation. Knowing the lights, wipers and hazard switch by feel means fewer distractions later, when attention belongs on the road and the traffic around it.
Multimedia and Connectivity
Keeping a phone charged matters on longer trips, since navigation drains batteries quickly. Whether calls can be answered without handling the phone, and how music is chosen, are separate questions worth settling before departure.