Short of contacting someone who worked at DMV(or Folsom
) involved with dissemination,it's going to be very hard to establish a definitive timeline with these.
1968 was the first year CA DMV began using random access computer for processing basic registration documentation.
Also unless you have a definitive first date of sale, assigning an alpha to a build date/VIN won't really be conclusive as some were titled the day they rolled off the truck- and others sat on lots for months. Purely speculation, but i would say there weren't any W 69 MY's, and no Z suffix cars sold in calendar year 68. X and Y were shuffled up- look at that very early 09A car Charlie listed(one of the first off) and the other 09A listed and they are both Y&X respectively. If I had to guess Charlies car sold later than the other 09A example. Then throw the regional series deal into the mix along with a sprinkling of early release blue base and it's muddies it further..
