Comfort and Convenience
Cabin temperature is a common point of disagreement on a long drive: height, clothing and how close someone sits to a window all change how warm the same setting feels. Agreeing early saves repeated fiddling.
Safety and Driver Assistance
Running through the basics while parked, such as mirrors, lights, hazard switch and horn, leaves fewer unknowns once underway. A few minutes before setting off is generally easier than working things out in moving traffic.
Multimedia and Connectivity
Phone batteries drain quickly on long drives, especially with navigation running for hours. Where a charging option is available on board, using it early keeps the handset ready for calls at the other end.