Comfort and Convenience
Cabin temperature is a common point of difference: some people settle best in cooler air, while others feel a draught almost at once. Preferences also shift with clothing, time of day and where someone is sitting.
Safety and Driver Assistance
Knowing where the lights, wipers and hazard switch sit before setting off means fewer glances away from the road later. A short pause before moving is easier than searching mid-journey while passengers are talking.
Multimedia and Connectivity
Phone battery level matters on longer runs, because navigation drains it steadily. If a charging point sits within reach of a passenger, someone else can deal with the cable while the driver simply carries on driving.