How many are left? I heard there was not too many left? What do the black numbers behind the liscense plate mean exactly? What else should i look for in a rare festival car besides the numbers behind the rear plate? My car is #16 festival car, it was sold to a GM executive then to someone in Oregon and then it went to someone in California which we purchased it from. It has #36 behind the rear plate. Was this a sequence number? or possibly a line up number? Any information would be great!