What is a unibody vehicle?

• A. A vehicle where the body and frame are built as one unit.
• B. A vehicle with a separate frame and body.
• C. A modular frame system.
• D. A unibody is a type of chassis coating.

Answer: (A)

Unibody construction means the vehicle’s body and its structural support are built as a single, integrated unit. The shell and the load-bearing rails work together to carry the vehicle’s weight and absorb crash energy, with many structural members formed as part of the exterior panels. This differs from a separate-frame design, where a rigid frame underpins the body and the body is mounted onto it. In a unibody, repairs focus on restoring the integrity of the unified structure—straightening and replacing affected body panels and rails within the surrounding shell—rather than dealing with a separate, removable frame. Also, a chassis coating describes a finish, not the construction method, so it isn’t correct. The best description is that the body and frame are built as one unit.