Comfort and Convenience
Power mirrors move the glass electrically from a switch, so they reset the view after another driver. They do not widen the field itself, and blind spots beside the car remain the driver's responsibility.
Safety and Driver Assistance
A passenger airbag acts only in the instant of a serious impact, when no human reaction is fast enough. Attentive observation avoids collisions; the airbag limits injury once one is already happening.
Multimedia and Connectivity
The audio system handles source selection, so the driver chooses between radio and a connected device, and sets volume, from the car's own controls rather than reaching for the phone itself.