The unseen foundation of the IS’s direct and engaging sports handling, stability and ride comfort is high rigidity body structure. To achieve the balance of light weight with excellent rigidity that makes this sports performance possible, it required the adoption of innovative production techniques. They include the extensive use of body adhesive which enables the joining of panels over an extended area, and laser screw welding. In combination with the use of hot-stamped and high-tensile steel sheeting for reinforcement and critical components, the result is a lightweight chassis with outstanding rigidity and vibration damping characteristics. It provides an excellent foundation for the agile responsive handling and smooth ride that shape the IS’s sports driving pleasure.