Comfort and Convenience
Cabin temperature is a good example: some people travel best slightly cool, others warm. Preference depends on clothing, build and habit, so travelling companions often settle on a compromise and revisit it as hours pass.
Safety and Driver Assistance
Learning where the wipers, lights and demister controls sit while parked means less searching for them later. A few unhurried minutes with the car stationary turn unfamiliar switches into habits before the first motorway stretch.
Multimedia and Connectivity
Phone battery drain is the common one, since navigation apps run continuously. If a suitable cable or wireless pad is available, keeping the phone powered is a separate matter from how calls or music reach the speakers.