Went back and looked at my collection and discovered that I was thinking of the wrong set. I picked up the Summer of '69 set six pack for a good price. This Big Blocks set had one of my Grail cars - the 'Cuda:
I won one loose off e--- for a couple bucks, then had trouble with the seller sending it. In the meantime I won a carded edition for about 15 bucks (had to have it though!) The other seller ended up sending the car finally, but I guess he was still mad. It came wrapped in newspaper, so the interior was all inked up