Comfort and Convenience
How upright a person prefers to sit varies with height, build and long-standing habit. Two drivers of similar size can settle on noticeably different postures, which is why a comfortable position is worth establishing individually.
Safety and Driver Assistance
Before setting off, it helps to work through the menus and switches unhurriedly: where the ventilation controls sit, how volume is reached, what the steering-wheel buttons do. Unfamiliar layouts are easier to learn stationary.
Multimedia and Connectivity
Calls arriving mid-journey are the awkward part of a long drive. Where hands-free calling is supported and set up in advance, a call can be answered without handling the phone. Music playback is a separate question.