Rear-view mirrors are usually adjustable, allowing the driver to customize the angle and position of the mirror for optimal visibility. Some vehicles may also have additional features such as auto-dimming mirrors that reduce glare from headlights, or integrated cameras that provide a wider field of view.
In most jurisdictions, it is a legal requirement for cars to have at least one rear-view mirror. Some vehicles, such as trucks or vans, may have additional mirrors to provide even better visibility.