What is the main purpose of using turn signals?

The main purpose of using turn signals is to indicate your intended direction to other drivers. This communication is essential for safety on the road, as it alerts other motorists, cyclists, and pedestrians of your intended maneuvers, such as turning or changing lanes. By signaling your intentions clearly, you help prevent accidents, allowing other road users to anticipate your actions, maintain safe distances, and adjust their own driving accordingly.

Using turn signals not only promotes safety but also enhances overall traffic flow. When every driver is aware of others’ movements, it aids in creating a more organized and predictable driving environment. In contrast, the other options do not engage with the crucial role that communication plays in road safety. Showing off your car's features, distracting other drivers, or compliance with vehicle registration laws does not contribute to the fundamental purpose of turn signals, which is to communicate and ensure safe navigation on public roads.