eBay translations:
Rare = anything older than 1979
Rare = anything that has ANY option available at the time
Rare = no longer original due to mods (i.e., this isn't like the original vette, it's a one-of-a-kind now, thus "Rare")
Rare = I have this one, and you don't have this one. because I have it, because you don't.
ZR1??? Yes, it's a ZR1, just as it is still it's original yellow color.
I don't buy any car without driving it for at least 20-30 minutes minimum, then only after going home and sleeping on what I observed. After 24 hours, if I'm still eager for it, then I buy.