Need info on SAP options

Does anyone know exactly what options the "Sports Appearance Package" had on the 78 280z? How do you tell if they are aftermarket or original? Is there a difference in the VIN# or anywhere else? Any idea how they were distributed to dealers or were they added on at the dealers? I know the "Black Pearl" had the SAP, but am interested in getting a car in another color with a SAP option. Thanks--Stephani