Comfort and Convenience
Some occupants like a cooler cabin on a hot afternoon, while others prefer warmer air; that split often comes down to clothing and how long they have been outdoors.
Safety and Driver Assistance
Before a dawn start to reach an appointment, locating the gear selector, parking brake, and window switches while still parked keeps those actions from interrupting the first miles.
Multimedia and Connectivity
A phone that is running low during a day of appointments may need charging in the cabin; if a power socket is present, that is a separate need from playing music or taking calls.