Z11 Pace Car production began on 02D, the fourth week of Feb 1969, at the Norwood, Ohio Assembly Plant. My car, VIN 610XXX was a factory display car and was built on 02D and shipped from the Norwood plant on 03/11/1969. Dealers were told of the existance of the Z11 package in mid-January 1969.
There were a number of Z11s sent to Canada. I recall looking at a 396 automatic Z11 in 2001 in Canada that had its GM of Canada documentation. I didnt buy it because it was a horrible restoration: they actually welded new quarters on top of the old ones - just horrible
I drove 16 hours with a trailer, took one look for about 15 seconds and turned around and drove back home, another 16 hours. I was not a happy camper at the time.