Is there a build/broadcast sheet for the car? Only thing to tie SO number to VIN is the paperwork. I was keeping track of SOs versus VINs versus build dates a while ago. I don't know where the excel sheet is at this moment. But lower SPDS usually have a 0 in the beginning of the SO number. But IIRC, the SO numbers were based off assigned numbers that dealers had. So it is possible to have a later SO number on earlier SPD car and vice versa. But to have an August build date on a car that wasn't even released for production indicates more of a fender tag stamp error. Just my