I think I have a pre ewe't holden that's a holden sandman styling exercise. And its a van!! It could re-write the whole of sandman history I've read on this site if its real. I'm not sure if its genuine, but it has some indicators that it was a styling exercise. Not sure if it was a show car or what. A bit rough around the edges now, but looks like original paint. I can't find any data on it anywhere. Will get some pictures and post details soon.