Comfort and Convenience
Where a person likes to sit varies: height, leg length and arm reach all change what feels natural behind the wheel, which is why two people sharing a car rarely settle on the same position.
Safety and Driver Assistance
Before setting off it is worth locating the things needed in a hurry, such as lights, wipers, hazard switch and mirrors, while stationary and unhurried rather than searching once traffic demands attention.
Multimedia and Connectivity
A phone used for navigation drains quickly, so keeping it powered over several hours matters. Whether that happens through a socket or a dedicated port, the practical point is arriving with a usable battery.