Well, it's hard to compare the rarity of these dealer cars, since there are no definite production numbers for these cars. I would say that there are more COPO Camaros than there are Nickey or Yenko Camaros, though, and more Yenkos than Nickeys.
As far as value of a '67 Nickey Camaro...well, they sell so rarely that it's hard to tell, but I have saw them for sale in the $100,000 range, but whether the car actually sold for that, I don't know. As far as which is car is more valuable (Yenko or Nickey), I would probably guess they are pretty close in price, with the '67 & '68 cars being higher than the '69 cars due to their rarity.
There were 69 ZL-1 Camaros produced in 1969, and these are very pricey. It's very common for these to sell around $100,000 or more.
The prices on the "price guide" at the page in the previous post seem a little low. So, the prices there should only be used for a comparison, but I don't think they will apply. If you would like more pictures and information for these rare cars, check out the Yenko Sportscar Club's homepage, The Supercar Registry
, at www.yenko.net
. Here you can find many of these cars for sale, along with information about ALL of the supercar dealers.
'70 LS-6 Chevelle
Interested in COPOs, Yenkos or other dealer built muscle cars then go here: www.yenko.net
[This message has been edited by Chevy454 (edited 11-22-99).]