**Mirrors** are essential mirrors in a vehicle that allow the driver to have a **clear view to the rear and sides**. This is crucial for safety, as it helps to see what is happening around the vehicle while driving.

- On **two-wheeled mopeds**, it is mandatory to have a mirror on the left side, while the right side mirror is optional. This ensures that the driver can see the traffic approaching from behind and on the left side.

- In vehicles such as **cars, vans, and trucks** that can carry up to 3,500 kilos, a mirror is required on the left side, one in the center inside the vehicle, and one on the right side is recommended. These mirrors allow the driver to have a complete view of what is happening behind and on the sides of the vehicle.

Therefore, mirrors not only allow you to see to the rear but also to the sides, which is essential for safe maneuvers such as changing lanes or reversing.