1966 Barracuda Detroit Show Car Prototype Custom Concept?

Looks like the car is missing the wheel opening trim...I think they used front wheel trim on the rear when the quarters were opened up.....was the flip top gas cap and hood pins added later on?

Also noticed in the 2 pictures I have, the early car has Good Year tires on it, then at another auto show it had plain red line tires, and the Alexander Bros emblem was on the drivers fender in one pic and the earlier photo the passenger side fender does not have one. I'll do my best to scan them soon