Comfort and Convenience
Cabin temperature divides passengers more than almost anything else. One person feels comfortable in cool, moving air while another finds the same setting chilly, so agreeing on a compromise early avoids constant adjustment.
Safety and Driver Assistance
A few minutes with the handbook before departure clarifies what the dashboard symbols mean and how the mirrors, lighting and climate functions are operated. Preparation of this sort belongs at home, not mid-journey.
Multimedia and Connectivity
Hands-free calling is the common need on a long drive, because answering by hand is both awkward and unlawful in many places. Where the car supports it, pairing the phone beforehand saves fiddling later.