What is a feature of a crumple zone?

A crumple zone is specifically designed in vehicles to absorb impact energy during an accident. This design feature helps to manage and dissipate the forces generated in a collision, reducing the amount of energy transferred to the occupants of the vehicle. By deforming in a controlled manner, crumple zones help to protect passengers by minimizing injuries that could result from a harsh impact.

The purpose of crumple zones is integral to vehicle safety, enhancing the overall protection provided by the car's structure. It is a critical aspect of modern automotive engineering, as it supports the vehicle's ability to protect passengers by extending the time over which the collision forces occur, reducing the likelihood of severe injury.

The other answer choices reflect features that do not relate to the primary function of a crumple zone. For instance, crumple zones do not directly enhance fuel efficiency, provide aesthetic benefits, or contribute to the interior legroom of a vehicle. Instead, their sole function focuses on the safety aspect of absorbing and mitigating crash forces.