ebay 65 barracuda stored for years!!

Neither my '64, or '65 Barracudas have rivets. That is how the cars were built. It was held on with either spot welds, or glue. If I understand it correctly, '65 was the last year they didn't use rivets. They started using rivets on their cars in '66.

It is strange how the holes are there. Can anybody provide proof of whatever the truth is?