Comfort and Convenience
Cabin temperature is rarely agreed on: the same setting feels cool to one passenger and warm to another. Clothing, seat position relative to the vents and personal sensitivity all play a part.
Safety and Driver Assistance
Time spent before setting off is rarely wasted. Mirrors, seat and steering position are far simpler to set with the car stationary than to adjust once traffic is moving around you.
Multimedia and Connectivity
Listening habits differ: radio one day, a stored playlist the next. Where a system supports several audio sources, switching between them is a separate matter from charging or from handling calls.