Comfort and Convenience
Cabin temperature is a preference rather than a setting with one right answer: height, clothing and where someone sits all change how warm a seat feels. Agreeing on it early avoids repeated adjustments.
Safety and Driver Assistance
Before setting off, it is worth locating mirrors, lights and hazard switches while stationary. Preparation of that kind belongs to the driver rather than to any equipment, and it is quickest to do before passengers settle in.
Multimedia and Connectivity
Phone battery is the usual worry on a long day out, since navigation drains it fastest. Where a charging point is available, it keeps a passenger's device usable for directions later in the journey.