Comfort and Convenience
Cabin temperature is a common point of difference: what one person finds pleasant, another finds too cool. Agreeing on a setting early, and inviting those in the back to speak up, keeps preferences from going unsaid.
Safety and Driver Assistance
Before setting off, it is worth locating the hazard lights, demisting and mirror adjustment while the car is stationary. Learning them in a calm moment means less searching later, when passengers are aboard and attention is divided.
Multimedia and Connectivity
Keeping a phone charged matters on longer trips, because running navigation drains a battery quickly. Where a suitable power outlet and cable are available, a passenger can top up a device instead of borrowing the driver's.