It's really quite common for the "new" model cars to begin being sold at the end of the previous year. So the 1994 models hit the dealerships at the end of 1993, and therefore must have begun production a little while before that.
Mine has a tag on the inside of the door that lists the date of manufacture as 12/1993 and even has a production number, maybe only because it is one of the first 500 made. No. 467.

Other people have told me they don't have this tag so I'm not certain if they only did it for the first 500 they made.
http://www.vinguard.org/vin.htmthis site gives a rundown of general VIN nomenclature
The sequential number at the end(last 4) is supposed to be the number that "Identifies the sequence of the vehicle for production as it rolled off the manufacturers assembly line."
But that may not necessarily be that number of the Celica made, instead mine could be the 7389th Car that was made at the plant in Tahara, Japan of All the Toyota models made there.
Try your VIN here
http://www.vindecoder.net/
This post has been edited by VavAlephVav: Aug 10, 2015 - 10:31 PM