Comfort and Convenience
Driving position is a common starting point, because height, leg length and posture habits vary widely. Two people in the same car may want the seat and wheel set quite differently before either feels settled.
Safety and Driver Assistance
Spending a few minutes with wipers, lights, mirrors and climate switches before setting off means less guesswork later. Knowing where things sit helps keep attention on the road rather than on hunting for an unfamiliar button.
Multimedia and Connectivity
Charging matters if a phone doubles as a navigation device, since a long route can drain a battery. If a socket or port is used, its position and whether a cable reaches comfortably shape how workable that is.