Blast from the past on this, I actually had that info and alot more on the V6 Calibra in Australia but it's hidden away somewhere in some folder I havn't touched for years...
I was interested in the above because I'd purchased (2nd hand in 2002) the last V6 Cali ever sold and registered in all of Australia which took place with the 1st owner in Feb. 1999 - 2 years after they were pulled from GMH showrooms...
What I did at the time was go through GMH head office in Port Melbourne for all those sorts of answers and info there was a guy there at that time who was very helpful looking it all up for me, maybe you can try the same see how you go, just thinking of it I don't remember the number being around 300 I think it was alot more than that despite the V6 only being available from 1995 and priced quite high, they were over 50k brand new drive away...