Finally, speed is the collision-free driver's greatest enemy. Speed forces the driver to do everything faster. Higher speeds also require longer braking distances. Despite a great driver's ability to steer and avoid an accident he does not have the guarantee that sufficient space for braking is available. In other words, if something suddenly stops or runs into the road, then the space needed for braking just disappeared. Your car and whatever you hit will absorb the energy from the speed of your car by collapsing. The energy from the speed of your car ends up in all those bent parts seen in automobile collisions. So, speed not only requires the driver to respond faster but also eliminates the possibility of braking.