That's an interesting one - it does seem to be distinctly orange. It's not the first base, because it has the patent number, so it could be a colour trial. Does it have silver trim on the grille?
The Ford fire chief is also an odd colour - is it a repaint?
The two fire vehicles in the pic have the same off red color. Could that be from some manipulation with the lighting in the photo or something with the camera?
The Fairlane is definitely an odd colour - it should be bright red. The cloudy windows might be caused by superglue fumes - do you think it’s been apart?
Pretty sure it’s not been apart but after close scrutiny it and the Pontiac would appear to be sunfaded. There is a touch of red on the “C” pillar of the Pontiac and on the underside of the Fairlane the colour is much redder.