What is the purpose of using bumpers on passenger automobiles?

The purpose of using bumpers on passenger automobiles is primarily to absorb impact. Bumpers are designed to absorb energy during low-speed collisions, protecting the vehicle's frame and critical components such as the engine and trunk. This absorption feature helps reduce the severity of damage to both the vehicle and, in many cases, the occupants inside. By spreading out and dissipating the forces generated during an impact, bumpers play a crucial role in passenger safety and the overall integrity of the vehicle.

While enhancing visibility, preventing accidents, and increasing vehicle height may all pertain to different aspects of vehicle design and functionality, they do not directly correlate to the primary function of bumpers. Bumpers are specifically engineered to mitigate damage during minor collisions, making the role of impact absorption critical to their design.