Comfort and Convenience
Where a driver likes to sit relative to the wheel and pedals varies widely; some prefer an upright, close position, others a more reclined one. Height, leg length and habit all feed into that choice.
Safety and Driver Assistance
Sorting mirrors, seating and the position of essential switches while stationary keeps those small tasks off the moving road. It is ordinary preparation, in the same spirit as reading the route before you set off.
Multimedia and Connectivity
Long stretches often come down to listening material: radio coverage fades between regions, so stored or streamed audio is worth arranging beforehand. Charging and hands-free calling are separate matters, each depending on what the car supports.