I was surprised it didn't have AC but the Calais was the entry level Caddy so AC was optional. I think by the end of the sixties, AC was standard on Cadillacs.
@@nivek67cars AC was never standard on all Cadillacs in the 60s. There are a lot of non-AC Caddys. My Great Aunt had a new 63 with no AC. I've seen non AC 1970 Caddys too. Lincoln made AC standard before Caddy did. :)