http://www.handbuilt.net.au/Someone told me getting shape into metal is easy - as long as it doesn't have to match anything else!!! I expect that might be a lot of the truth in those hand built cars where the "left side doesn't match the right".
What I liked was the way he did it in one big bit. None of this "ten goes to get the window frame right" then to be added to the stack of bits to weld together at the end. There's a lot of risk in craftsmanship at that level, a real show of confidence to be banging big dents into something which, part finished, was so nice and taken so long to get to that point. No catch net.
David