Comfort and Convenience
Cabin temperature is the classic point of disagreement: one passenger feels a draught where another feels stuffiness. Preference depends on clothing, and on where someone sits relative to the vents and the sun, so agreeing a setting early avoids constant adjustment.
Safety and Driver Assistance
Before setting off with others aboard, it is worth locating the lights, wipers, demister and hazard switch. Knowing where they sit helps attention stay on the road rather than on searching, especially when weather or light changes unexpectedly.
Multimedia and Connectivity
Battery level matters on longer trips, since passengers often navigate or message throughout. If a charging point is available, agreeing who uses it avoids a scramble later, and keeping cables tidy stops them tangling underfoot.