Yep Bill, I remember like it was yesterday my Dad at the breakfast table showing me the full page ad for the brand new 1964½ Mustang in the L.A. Times...though as I recall, THIS all took place in the Spring of '64, NOT later on in the Fall...like say in SEPTEMBER!
(...saaaaay, though now that you've mentioned the original Mustang here Bill, maybe THIS is what Grzegorz should ACTUALLY be callin' his BA???...a "2001 AND A HALF Bonneville America", HUH?!, and even THOUGH it was assembled in SEPTEPTER of that year LIKE MINE was!!!)
