NO...THE BUILD SEQ # IS ONLY ON THE B/SHEET..AS IT ONLY DENOTED THE ACTUAL TRIP DOWN THE ASSY LINE.. THE S.O NUMBER IS THE SAME NUMBER AS THE FACTORY/DEALER ORDER FORM TOP RIGHT CORNER.. ..SEQ# IS IN ORDER ON THE LINE....BUT CAN BE ANY CAR SEQUENTIALLY THEY HAVE IN LINE.. NOT TIED TO AN ORDER OR STYLE..JUST RANDOM