examine the model of the car on the road if the car stops at each place on the road where is potential energy the lowest

The front of a car is designed to crush in a fairly predictable way during a crash. A lot of the kinetic energy is converted to heat during the metal deformation. However, there is always some springiness in the car's structure, and so there will be a degree of rebound.

Explanation:

For example, when a car is brought to a stop by friction on level ground, it loses kinetic energy, which is dissipated as thermal energy, reducing its mechanical energy. Figure 2 compares the effects of conservative and nonconservative forces.