Comfort and Convenience
Seating position is personal. Height, arm length and the habit of how far back someone likes to sit all pull in different directions, so two people sharing a car rarely agree on the same position.
Safety and Driver Assistance
Before a longer errand run it is worth sitting still for a minute with lights, wipers and demisting. Knowing where those are beforehand means not searching for them once rain or dusk arrives.
Multimedia and Connectivity
Charging is the errand-day concern, since a phone used for lists and directions drains steadily. Where a power source is available in the cabin, topping up during the drive keeps the phone usable at the last stop.