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Re: Mary and Joseph!

Mild carbon steel. The metal was very thin to make the cars light weight. Corrosion proffing technology was not very advanced when the early Z cars were assembled. Most American cars of the same vintage were also rust buckets.
 

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Wow...

I've got a '71 240Z that only needs about half that much metal replaced. You have done an exceptional job of documenting the work. Keep it up! It's really interesting to see what you've done, even if it's not a Z...

You sure you don't want some galvy sheet metal and some pop rivets? heh...
 

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Re: what kind of metal? 5-year lifespan

They built their vehicles to last 5 years, then to be traded in and recycled.

Japan literally had tax and registration laws that favored such activity, so as to keep their home auto industry and economy cooking.

It was only after exporting to the US and ultimately to meet the US consumer demands - for cars that didn't start rusting weeks after buying - did the Hondas, Yodas, Datsuns get serious about making good cars even better.
 
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