Very American way of putting things together. Interesting that the body appears to be a monocoque with integral aluminium framing rather than bolting everything onto a steel frame. I wonder how much less weight an Eriba would be with an aluminium skeleton rather than steel. Ok not as potentially strong, but would still be stiff, and if an Eriba was damaged to the extent that you were relying on its strength not to fall apart it would be written off anyway.. Maybe metal fatigue would come into play on an aluminium skeleton?