Comfort and Convenience
Cabin temperature is a good example of personal preference: clothing, habit and simple tolerance for warmth vary, which is why two people sharing a car often reach for the same dial in opposite directions.
Safety and Driver Assistance
A short familiarisation before setting off — mirrors, hazard switch, indicator stalk — costs a minute and removes guesswork later. It matters most in an unfamiliar car, where habits from a previous one no longer apply.
Multimedia and Connectivity
Hands-free calling is about conversation quality at both ends, which is unrelated to how music is chosen or how a battery is topped up. Where such functions exist, each is worth trying separately.