May be a bit off topic here, but my former dad in law worked for GM at Fisher Body back in the early 50's he told me back around Y2K that the thickness of the steel used in the Y2K cars was barely half the thickness of the steel they used fifty years ago. Since then I have always wondered how much today's new vehicles would weigh if they were produced with steel the same thickness as the 1950 models used. For the sake of simplicity, let's just limit the comparison to body-on-frame models and not unibodies...which pretty well rules out many of today's models. Can anybody imagine what a 2015 Suburban loaded up with all the bling-bling that is piled on them today would weigh with the steel body panels of the thickness used in the 1952 models?