Is driving too close to the vehicle in front dangerous?

Correct answer

Yes, because of the risk of a rear-end collision if braking occurs.

Yes. The gap must allow you to stop without a collision if the vehicle ahead brakes suddenly, considering speed, grip and braking, under article 54.1. Good brakes and travelling at the same speed do not remove that risk. As a practical guide in favourable conditions, use a gap of at least two seconds; increase the margin with rain, poor grip or other adverse conditions. This is not a guarantee or a general statutory minimum of two seconds in towns and three on other roads.