ah, Le Tourneau - my favourite whacky vehicle designer. There were several "road-trains" he designed for the DEW-Line / Arctic supply use, some have been accidentally preserved in junkyards. I have a very nice book on his stuff.
He should have added that radar to every vehicle built before they left the shed for the first time ...... his personal VW Beetle was crushed when he parked it behind one of his vehicles on the test range .... the driver didn't know it was there, couldn't see it & just backed up over it !!
LeTourneau didn't blame the guy, he accepted that he parked too close
In WW1 Herr Porsche liked road-trains too