Comfort and Convenience
Seating position is one of the clearest examples. Height, reach and build differ, so the place one driver settles into naturally can feel too upright or too low for the next person.
Safety and Driver Assistance
Learning where the basic controls sit before setting off is simple preparation. Locating lights, wipers, demisting and hazard switches while parked means less to work out once traffic demands attention.
Multimedia and Connectivity
Keeping a phone charged during a long drive is a practical need in itself, separate from making calls or playing music. If charging is available on board, navigation apps can run without draining the battery.