Yeah.....
View attachment 1244441
You can see some design cues that didn't make it to production.
First is how pinched the front end is. It almost looks as low as a Challenger.
The door scallop design is also noticeably different.
Wheel opening arches have a 71-72 Plymouth Satellite sort of inverted flare style.
The quarter window design here doesn't match the sail panel angle like the production cars do.
The blue arrow shows their original idea of twin fuel fillers.
It is as if the 500 and Daytona models were patterned after this rear window design.
Notice the lack of the built in "ducktail" rear spoiler.