What is the primary purpose of a vehicle's mirrors?

The primary purpose of a vehicle's mirrors is to enhance visibility and decrease blind spots. Mirrors are crucial safety features designed to allow the driver to see surrounding areas that might otherwise be hidden from view. This includes checking for cars or obstacles in adjacent lanes, monitoring the rear of the vehicle, and ensuring a clear path when changing lanes or merging. By expanding the driver's field of vision, mirrors help prevent collisions and improve overall driving safety.

The other options do not align with the fundamental function of mirrors in a vehicle. While mirrors might have aesthetic qualities or contribute to the vehicle's design, their main focus is on safety through visibility. Providing entertainment or displaying speed is not a role associated with mirrors; such functions are typically served by other features within the vehicle.