VIN:

Identifier Code Details
World Manufacturer Identifier (1-3) 1FA Manufacturer: Ford Motor Company USA Make: Ford Type: Passenger Car
Restraint System Type (4) F unknown
Vehicle Type (5) P Passenger Car ? Ford North American Vehicles
Line, series, body type (6-7) 46 Mustang, Cobra, 2-Dr Convertible
Engine type (8) V 4.6L, 4V SFI (DOHC), eight cylinder
Check digit (9) 2 is valid (see below)
Vehicle Model Year (10) W 1998
Assembly Plant (11) F Dearborn, Michigan (USA)
Production Sequence Number (12-17) 134648 Note: consecutive unit numbering began at 100001

VIN Check Digit is calculated by applying a formula to the other 16 digits of the VIN. If the calculated value and the value you have entered do not match then there is a mistake in the VIN (or the calculation). However, a match does not prove the VIN is correct, because there is still a 1 in 11 chance of any two distinct VINs having a matching check digit. See here for more information on VINs and their check digits.