an automotive vehicle is constructed having a metal framework and a body made of interconnected plastic components including a floor module . the framework has elongated longitudinal and transverse structural members of uniform cross sectional configuration . the underside of the floor module has downwardly directed troughs positioned and configured to engage the elongated structural members . resilient bushing material is disposed between the engaged troughs and structural members , and is compressively held in place by u - shaped brackets which urge the structural members into the corresponding troughs . by virtue of such construction , the framework and body are integrated in a manner which minimizes stresses that would otherwise be conveyed to the body from the framework .