Interesting site to look at, as it lists detailed RPO info for a lot of cars from 1980-2010. I just found out my 2001 2500HD is one of only 2 in the whole world made that way. Off to the auction and retirement to some place warm.
. The truck my daughter owns is one of 12 made that way. With a large option list, it seems that there are a LOT of "rare",one of a kind cars out there. You will need a vin # to use the site and they limit you to 3 requests. http://www.compnine.com/vid.php
