Comfort and Convenience
Some people like a window slightly open for fresh air, while others prefer the cabin closed and quiet. That preference varies with weather, noise and who else is travelling.
Safety and Driver Assistance
Before a dawn start, it helps to know where lights, wipers and demisters sit so those switches can be found without searching. A short look around while parked is enough to locate them.
Multimedia and Connectivity
A long stretch often calls for a podcast or playlist to fill quiet time. If audio playback is available, that listening need is separate from placing a call or topping up a phone.