The unique, revolutionary chassis design of the XB4 features XRAY Multi-Flex technology. Both the aluminum backbone and composite chassis-plate are firmly connected to create a solid framework with each piece playing a distinctive role. The alu chassis provides the car with stability and stiffness, while allowing torsional flex along the longitudinal axis.
Due the nature of the aluminum material and the machining process, it is normal that the chassis may be slightly bent in the longitudinal direction.