The yellow 68 is interesting though. Notice those mysterious "Ram Air" emblems on the hood? There were several discussions about those die-cast emblems a few years ago as to whether they were factory or not. Some folks said they were original, even had Pontiac part numbers, while someone else said they were made in the 1970's in some guy's garage.
Apparently, someone thought those emblems were original RAII items...someone paid $600.00 for a set off E-Bay.