See Figures 1 through 7
All models have a vehicle identification number (VIN) stamped on a plate which is attached to the left side of the instrument panel. This plate is visible through the windshield. The VIN is also stamped on a plate in the engine compartment which is usually located on the cowl.
The serial number on all 370-80 models consists of a series identification number, followed by a 6-digit production number. The serial number on all 381 and later models was changed to a new 1 digit format. The first three digits are the world manufacturer identification number. The next five digits are the vehicle description section (same as the series identification number used on vehicles through 380). The remaining nine numbers are the production numbers.