I have no visuals, but our local cable ME TV shows older shows. They started showing CHiP's about a month ago and on occasion you get a clamshell wagon to pop up. There is a reoccurring 73 Caprice Estate Bronze Metallic that I have seen in a few episodes.
The show had a lot of wagons in it, some time back I posted the pics in vintage street scenes but who knows where to find those pages now. But you can find them all plus more below........... http://www.imcdb.org/movie_75488-CHiPs.html