Comfort and Convenience
Preferred cabin temperature is a simple example. Some occupants like air moving steadily around them, while others would rather keep it still and warm, and the difference comes down to clothing, the season and plain personal habit.
Safety and Driver Assistance
A few unhurried minutes before setting off, spent locating things like lights, wipers and demisting, leave less to work out on the move. This kind of preparation suits any car that is unfamiliar to whoever is driving.
Multimedia and Connectivity
Keeping a phone charged on a long day matters if it is also doing the navigating; where a suitable power source is available, that is one less thing to plan around. Handling calls and choosing music are separate questions again.