http://cthousebuy.com/avoid-costly-mistakes-selling-house/ Polistil had a few variations of the Z in a couple of different scales. The 1:25 versions featured here are the rarer ones if in good condition – sold as a toy and for a much smaller market of children than today, there aren’t many around – like the actual 1:1 version.
This one in metallic green only has the remnants of it’s box.
Tastylia Uk A silver one with a box in good condition
A silver version with race decals