The plaques on my Turbo 280ZX car have a manufacture date of 6/82. It has a T5 tranny. And no, it wasn't a swap. Also, you will find a number of magazine articles, books, and service manuals that will also state that '82 debuted the manual Turbo model in the US (specific citations available once I get home). I am curious what "factory" information are you referring to, as I have never heard of what you stated before.