Comfort and Convenience
Seating preferences differ because people vary in height and in how upright they prefer to sit. A position that suits one driver can leave another reaching further for the wheel.
Safety and Driver Assistance
Learning where the lights, wipers and mirror controls sit before setting off means less searching later, since a familiar layout is easier to operate without looking away from the road.
Multimedia and Connectivity
Charging and audio are separate needs: a phone may hold its charge well yet still be wanted for music or calls, so it helps to know which sockets or connections are available.