Comfort and Convenience
Seating position is personal: height, arm length and the view a driver wants over the bonnet all pull in different directions. Two people sharing a car often find that a settled preference for one rarely suits the other.
Safety and Driver Assistance
A few minutes before setting off is a good time to locate the lights, wipers, demisting and hazard switches. Preparation of that kind means the first need for them mid-journey does not turn into a search.
Multimedia and Connectivity
Keeping a phone charged on a long drive is a separate need from playing audio or taking a call. Where a car provides for each, they may rely on different sockets, settings or habits worth learning early.