Frame and Unibody structure
Modern Car Construction
The thing that makes modern cars handle accidents so well is the unibody construction that car companies now use. Unibody construction means that the frame and the body of the car are one. That means that if there is damage to the body, usually there will also be damage to the frame. However, unibody frame damage is much easier to repair in modern vehicles than older vehicles.
This is because the frames on modern cars come in pieces. Even if one section of the frame is completely totaled, it doesn’t make the whole frame a total loss. Instead, the damaged section or sections of the frame can be replaced, leaving the undamaged sections of the frame untouched. This makes it a very economical repair process.