From the start of 65 production. First fastback we owned had the cloth insert interior package it was so early of a car. Because they were the new body style dealers made every effort they could to get some of the firsts. Purchased the first special order 65 Mustang ordered from the Los Angeles DSO. Think it was ordered this way to move the order to the front of the line (or at least that was the idea) Never figured out what was non-RPO on the car. 6 cylinder, automatic, standard exterior color car.
First three fastbacks that were converted into the first three Shelby's were built at San Jose approx mid October
Preproduction models were tested and photographed for brochures and the likes as early as end of May into June