When another vehicle is very close to your car from behind, it is important to **increase the safety distance with the vehicle in front of you**. This is because, if an unforeseen event occurs, you will have more space to brake smoothly and in a controlled manner, avoiding sudden braking. Braking abruptly could cause an accident, as the driver behind may not have enough time to react.

Furthermore, by increasing the safety distance, you also ensure that you have time to signal your maneuvers in advance, which helps the driver behind you understand your intentions and react appropriately. This is part of **preventive driving**, which aims to avoid risky situations and maintain safety on the road.