I see very few LHs on the road these days. The Dodge Intrepid and even Chrysler 300 used to be everywhere, but they seemed to vanish into thin air.
I still see a lot of Corollas (E100/110 mostly) and Camrys (XV10/20 especially) from the 1990s though, and a percentage of those two makes from the late 80s. Not as many Avalons though, but I see more of them than any Chrysler LH type.
Back when I worked at an automotive supplier we were doing a program with Chrysler. The trade pubs were trumpeting how they had this V6 program for the LH 2.7/3.2 that went from first CAD keystrokes to full production in 18 months.
I asked their engineers “how did you pull that off” and they just rolled their eyes.