Comfort and Convenience
Preferred cabin temperature varies widely, and one person's comfortable setting can feel stuffy to the passenger beside them. Clothing, how recently someone was walking outside and simple personal tolerance all feed into that disagreement.
Safety and Driver Assistance
A few minutes spent with the handbook, or pressing through the menus while stationary, turns unfamiliar symbols into recognisable ones. Preparation of this kind belongs on the driveway rather than at a junction.
Multimedia and Connectivity
Hands-free calling is the function most people miss when it is absent, because city trips often overlap with the working day. Where such a system is fitted, a conversation stays off the handset.