I have heard rumors of one car................
But it was not ordered as a T/A. According to the story I heard, a /6 car was pulled of the assembly line and used as a test mule to fit the T/A parts and see if they fit. This supposedly took place in November of 1969, which is also the same month the first batch of T/A blocks were cast.
I asked the car owner several questions and for photos etc, and he never got back to me, this was years ago. Still just a rumor with no proof.........................
May or may not be the same car?
One of the protoype T/As was a 318 car though.