Comfort and Convenience
Cabin temperature is one of the most disputed settings in any car, since people judge warmth differently and passengers sit in different airflow. Agreeing a setting before departure avoids constant adjustment.
Safety and Driver Assistance
Familiarity lets a driver reach a common control by feel rather than by looking down. Practising that while stationary, on a quiet street or at the start of a rental, is simple preparation.
Multimedia and Connectivity
Taking a call without handling the phone is a common expectation, and it depends on the connection a car supports. Where hands-free calling is available, setting it up before driving avoids doing so en route.