Comfort and Convenience
Seating position is a good example: some drivers want to sit high with a clear view forward, others prefer to sit low. Build, habit and the length of typical journeys pull people in different directions.
Safety and Driver Assistance
A few minutes spent locating the lights, wipers, demister and hazard switch before setting off means less hunting later. Working these out while parked is simply easier than puzzling over them once the journey has begun.
Multimedia and Connectivity
Keeping a phone charged through a long day is its own need, separate from taking calls or playing music. If a charging point is available and sits within reach of where the phone rests, that matters daily.