Do you have more pictures like this from of random older mopar out on the road? Not the ones like that other thread with cars in junkyard, backyards, or at Cruise-In's.
The cars pictures are most likely cars that don't get "brought out". They are just cars that get driven regularly.
These types of pictures of single cars just from radomly driving around. There many many more times you see cars of interest, but they just flash by. You just don't have time or are able to whip out a camera. Not that easy navigating through So Cal traffic while trying to get your camera out and wait for it to get ready to shoot.