Comfort and Convenience
Seating position is a personal matter. Height, arm reach and how upright someone prefers to sit differ from person to person, so an arrangement that suits one driver can feel wrong to the next who shares the same car.
Safety and Driver Assistance
Before setting off it is worth locating the wipers, lights, mirrors and demisting. Finding them while stationary means they are not being hunted for later, at a moment when a driver would rather keep looking ahead.
Multimedia and Connectivity
Charging a phone is its own need, distinct from taking calls or playing music. City trips top a battery up in short bursts, so where a power source sits, if one is available, decides how easily a cable reaches.