I have questions
1 Do the doors have the 'CUDA chrome on top of them? What about the 'CUDA chrome under the quarter windows and the stock welded on studs that hold the chrome on
2 what side of the tailpanel does it say Barracuda ?
3 Does it look like the quarters, tail panel, or trunk floor have been replaced
What I'm getting at is you could have a re-bodied car or even two cars spliced together
I have a car like this so I know this can happen..'CUDA in the front and Barracuda in the back
If it is a rebodied car then look for unusual welds on the radiator support or on top of the cowl
If it is a spliced car then look for unusual welding on the inside of the rocker panels at the driver seat or in front of the back seat.
As for a factory badging mistake. I don't think so... Got any pics of the tail or the top of the door area