WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying World Manufacturer Identifier
Courtesy of FORD MOTOR CO.
The first 3 vehicle identification number (VIN) positions are the world manufacturer code.
1FM - Ford Motor Company, USA, multi-purpose vehicle