Comfort and Convenience
Preferred seating position is personal. Height, arm length and long-held habit shape how far back someone likes to sit and how they angle the mirrors, which is why two people sharing a car rarely agree.
Safety and Driver Assistance
The minutes before setting off are the calm time to locate lights, wipers, demister and the hazard switch. Doing that while parked leaves one less thing to search for once traffic starts demanding attention.
Multimedia and Connectivity
Battery level is the common city worry, since navigation runs for the whole trip. If a charging option is present, plugging in at the start keeps the phone usable later, quite apart from how music is played.