1980 Pontiac production began
 

Here is one for the experts
because Google has no where to find it
What was the first day of production for the 1980 firebird from Norwood Ohio

As always thanks again

Google results are often a joke. One thing for certain, at least out of Van Nuys plant 301T builds did not begin til early Oct 79. I was told in Sept of 79 there was a hold on the 301T builds. The first 80 Pacecar I ever ran across had a late Nov 79 body tag.