It's a GM concept car, was supposed to be scrapped but got cut up and hid in a Michigan wrecking yard and is currently being restored. I'll try to dig up the name of it. EDIT '55 Chevy Biscayne concept car, and apparently the restoration is finished.
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I remember seeing a article about that one.. 1 half in one direction, the other half some where else in the yard.. cool story as well..