Comfort and Convenience
Some passengers want fresh air from a slightly open window; others prefer everything sealed. Sensitivity to draught, noise and motion varies from person to person, so agreeing this early avoids a quiet tug-of-war.
Safety and Driver Assistance
Drivers who have just taken over an unfamiliar car benefit from locating the hazard switch, demister and horn while parked. Hunting for them in moving traffic turns a simple action into a distraction.
Multimedia and Connectivity
Calls are the part of a journey that cannot always wait. Where a hands-free arrangement has been set up in advance, answering takes a moment rather than a search through pockets and menus.