Comfort and Convenience
Comfort is personal: height, build and posture all change what a good seating position feels like, and two drivers sharing a car rarely settle on the same one. Agreeing on cabin temperature is much the same.
Safety and Driver Assistance
Before setting off, it is worth knowing where the hazard lights, demister and headlight switch sit. Sorting that out while parked is far easier than searching for it once the car is moving.
Multimedia and Connectivity
A phone that ends a long drive with less charge than it started causes problems later, so many drivers keep a cable or pad to hand. Where charging is available in the cabin, that worry largely disappears.