Comfort and Convenience
Cabin temperature divides people more than almost anything else. One passenger wants cool air moving constantly, another feels a draught; clothing, seating place and simple personal tolerance pull the preferred setting in different directions.
Safety and Driver Assistance
Anything needing a proper look, such as mirror angles, the parking brake or how the gear selector releases, is best sorted while parked. Doing so in advance leaves attention free for the road.
Multimedia and Connectivity
Taking a call while driving is a different need from playing music. Where hands-free use is offered, it generally depends on linking the phone beforehand, so that setup is worth completing before leaving.