Not looking at thier collection, but I think I know 1 stingray they probably don't have. A local guy I run into once in a while in the Hot Wheels section has it. When he was a kid he was one of 10 kids that won a major contest and the prize was a special edition Stingray. He still has it, in the box....
id like to hear more about this "special edition". the only ones i know of were the custom baby blue fastback for Fritz's son and the black deluxes used as a sales prize for the top selling schwinn dealer. then theres the vans stingrays and beatle krates that came later for advertising props basically, i think the country time lemonade stingrays were some sort of prize bikes too.
It's been a couple of years since he told me and now I forgot what contest it was. I usually avoid the guy, he is one of those hard core Hot Wheels collectors that I find annoying.