Oh, we could keep going...
Actually I have a serious quesiton about this car, and forgive me if this is covered in any details in the books; I don't have access right now.
Here's the question: other than material (i.e. aluminum vs. steel) how did the "tub" differ from it's steel equivalents? Was it spot-welded (can you even spot weld aluminum?), or bonded, or riveted? Any knowledge of gauge? Hard point reinforcement? Additional ribbing or strengthening? Yes of course the cowl was different for the narrower windshield, but I'm wondering more about "design rules" for fabrication out of aluminum alloy.