Comfort and Convenience
Cabin temperature is rarely agreed on. Some people prefer cooler air moving steadily, others a warmer and calmer setting, and the same figure on a dial can suit one passenger while another reaches to change it.
Safety and Driver Assistance
Adjustments made while stationary, such as mirrors and seating position, are much easier than ones attempted later. Borrowed or newly bought cars especially reward a short pause to check what each stalk and switch does.
Multimedia and Connectivity
Taking a call without holding the phone is the usual expectation on the road. Where a car supports hands-free calling, that function stands apart from audio playback and from simply keeping the battery topped up.