I'm pretty sure that the chassis design guys in Detroit would roll their eyes at this. The OEM guys have been trying to make cars stiffer and stiffer. They use all sorts of tricks to make the car super stiff without adding weight. High alloy material, box structures, foam filled boxes, hydroformed parts, etc. It has been a chassis stiffening arms race for several decades now. The muscle cars that we work with are limp rags compared to a modern chassis. They were limp rags because they were designed on a drawing board and nobody had the ability to actually figure out how to make them stiffer without spending a fortune. If they had known how to do it they would've.