Mid year 273 in 64 Darts?

60jerry said

For several years now I’ve heard many people call some ‘65 mustangs 64 1/2. I never heard such a thing in the sixties or seventies. I had a ‘65 mustang that was built April ‘64. The car had a generator, not an alternator. It also had a road draft tube instead of the pcv system. Titled as a ‘65. It kinda bugs me hearing ‘64 1/2.
Jerry

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Mustangs were officially called, and titled as, 1965 models by Ford at their introduction in April 1964. However, that fall Mustangs were updated - among other things, the 260 V8 option disappeared. Can't remember some of the other changes, but Mustang folks started calling the early 65 models 64 1/2 to differentiate them. Kind of a throwback to Ford's 63 1/2 models which were a real thing and officially called such by Ford. But there was never an official 64 1/2 Mustang model.

Barracudas introduced at the same time were officially called, and titled as, 1964 models. First 65 Barracuda models were introduced that fall.