Comfort and Convenience
Seating position is a common example. Some people prefer sitting higher for a broad view over the bonnet, others lower and more reclined; body proportions, driving habits and typical journey length all shape that choice.
Safety and Driver Assistance
Locating the wipers, lights, mirrors and demister controls before setting off means less searching later. Adjusting the seat and mirrors while stationary is also simpler than attempting it once a journey has begun.
Multimedia and Connectivity
Charging is a separate question from calls and music. If a car provides a charging point, it keeps a phone usable on longer trips, while hands-free calling and audio playback depend on whatever connection the system supports.