Steel is 3 times the weight of aluminium. So an aluminium body makes sense. Bronze is 3.1 times the weight of aluminium and copper is 3.4 times the weight and only a fraction as strong as steel. So the point is what? Pretty? I have to agree wholeheartedly with the P.T.Barnum comment. Somebody will buy these things but someone else will spend a lot of time polishing.
These beautiful cars make my head hurt thinking of the time and exceptional effort to create them. Outstanding! As to some bemoaning the polishing it would take to maintain these Cobras I say what’s the difference between these and maintaining a black car . I know, I have two black cars ! It takes a lot of effort to have something special.
I agree with most of the other's comments but we all must remember that cars like this are a "work of art".
Think of them as a wall painting by Van Gogh where they are so expensive and must be carefully displayed and cared for. They are also considered an "investment" that will hopefully bring additional financial rewards in the near future.
So these cars would need to be in a museum much like one of Van Gogh's painting and if you think of it in that light, then they begin to make some sense.
Not something I would wanna do even if I could and I dunno if even Hagerty would insure it... this appears to be in the "Lloyd's of London" category.