Ms. K. has a photo of a GMC motorhome from the early 1970s.
Apparently, its missile racks are retracted for urban operations camouflage. But I presume they’re there.
(Footnote: In a number of the later Pendleton titles, Mack Bolan drives one of these, somehow inconspicuously, to the hardsites he wants to hit. And no one seems to catch on that one of these was nearby during the climactic finales of each book.)
Also the EM-50 Urban Assault Vehicle from Stripes
It has been a while since I’ve seen that film. Next time I dust the library, I’ll have to look for it.