Comfort and Convenience
How upright a person likes to sit is a genuinely individual preference. Height, leg length and arm reach all differ, so two drivers sharing a car rarely agree on a single ideal position.
Safety and Driver Assistance
A departure is a poor moment to hunt for an unfamiliar switch. Running through the main controls beforehand, ideally by touch, means the routine actions of a journey need no searching once underway.
Multimedia and Connectivity
Incoming calls are the common interruption on a long drive. Where hands-free operation is available, answering need not involve handling the phone; otherwise the sensible choice is letting a call wait until the next stop.