Comfort and Convenience
Cabin temperature is a personal matter: one traveller prefers cool air on a long run while another finds the same setting chilly, and preferences shift with clothing, sunlight through the windows and time of day.
Safety and Driver Assistance
A few minutes while still parked are enough to find the hazard switch, the demister and the mirror controls. That matters more when someone else shares the driving, since each person starts from their own settings.
Multimedia and Connectivity
A phone running navigation for hours drains steadily, so a charging arrangement is worth thinking about when packing. Hands-free calling, where it is offered, is a separate matter from audio and usually needs its own setup.