Commando engine in 64 Barracuda?

64 1/2....this always grabs me. There were no cars sold as half year cars off the showroom. If it was a 64 1/2, that meant it was a late 64 for the 65 model year. The 65s were started in 64 so it's completely possible to have a Commando with a 64 build date......but the car would be a 65 model year.