Here are some of the reasons why cars are designed to crumple for side collisions and rollovers:
* To absorb energy. When a car collides with another object, the force of the impact is absorbed by the crumple zones. This helps to reduce the amount of force that is transferred to the occupants of the car.
* To protect the occupants. The rigid passenger compartment is designed to protect the occupants from the impact of a collision. The crumple zones help to keep the passenger compartment intact and reduce the risk of injury.
* To reduce the risk of serious injury or death. Crumple zones and rigid passenger compartments have been shown to be effective in reducing the risk of serious injury or death in a car accident.
In addition to crumple zones and rigid passenger compartments, cars are also equipped with a number of other safety features that help to protect occupants in a collision, such as airbags, seatbelts, and anti-lock brakes.