What is the purpose of a vehicle's VIN number?

[Phil]

Vehicle Identification Number (VIN) is a unique code assigned by the manufacturer to identify a specific vehicle, also known as the chassis number or frame number. The VIN is a 17-character alphanumeric code, referred to as the 17-digit identification code, chassis number, or 17-digit number. Through its combination of letters and numbers, the VIN ensures that no two vehicles of the same model will have the same number within 30 years, providing a unique identifier for each vehicle. The VIN can typically be found in the lower-left corner of the windshield, on the driver's side hinge pillar, door lock pillar, or door edge. If not located there, it may also be affixed to the inner side of the door near the driver's seat.