There is a shiny new 73' Caprice Estate in the 1973 movie "Dying Room Only", starring Cloris Leachman and Dabney Coleman.
Yea, I saw that movie as a kid in the really early 80s.........I thought that was a really awesome wagon. I found the DVD on Ebay just for that wagon....I did't relize how good of a movie it was till I rewatched it a few months ago....