Does anyone know where...

Yes, the last six numbers on the vin match the sequence number on the upper left corner of the build sheet.
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They don't match up on this one. The Vin is different than the sequence number on this car. All the options, color codes, and shipping number match the car but the sequence number in the upper left of the build sheet doesn't match the VIN. All original car. Any ideas? Check out the notes in the margin on this sheet. Evidently they had cars with the same sequence number but different letter suffixes. That's why I thought it was a location on the assembly line rather than a particular VIN. Comments?