Comfort and Convenience
Cabin temperature divides people more than almost anything else. Some travel warm, others want cool air moving, and passengers in different seats experience the same setting differently, so agreeing a compromise early avoids constant adjustment.
Safety and Driver Assistance
Preparation includes knowing where things are documented: the handbook explains warning symbols and control layouts. Reading the relevant pages beforehand means a driver is not interpreting an unfamiliar icon while already moving.
Multimedia and Connectivity
Calls on a long drive are usually about brevity: telling someone when you expect to arrive. If hands-free calling is available, learning how to answer is worth doing before departure rather than mid-conversation.