Comfort and Convenience
Cabin temperature divides passengers more than almost anything else, since one person's comfortable setting feels stuffy to the next. Clothing, where someone sits and how long they have been aboard all shift that judgement.
Safety and Driver Assistance
Familiarity with the gear selector, parking brake and mirror adjustment matters most in an unfamiliar car. Setting these up in the driveway, rather than at a junction, keeps the first few minutes uncomplicated.
Multimedia and Connectivity
Hands-free calling answers a specific need: hearing and being heard without holding a handset. Where such a function is offered, setting it up once at the start of a journey is simpler than mid-route.