What Number is your car?
Have to agree with Centerpunch on this one - the "number" of your car is found in the vehicle serial number.
The VIN (Vehicle Identification Number) and the Serial number are the SAME number - it is the (17 digit) number used in all legal documentation to identify the vehicle. It is NOT the sequence number (or, in plant lingo, the ROTATION number).
I have been collecting Fords for over forty years, and every Ford marque I've ever been associated with (Cobras, GT-40's, Mustangs, Panteras, Shelbys, Tigers, and Thunderbirds) refer to the vehicle VIN to identify their cars. Typically, they will shorten it to just the last 4 digits of the VIN, hardcore guys like me, though, can often recite all eleven digits (now 17) of significant collector cars they have owned.
regards,
Jeff Burgy
SAAC New Ford GT Registrar