Model is a text parameter grouped under Identity Data. You also have that param called Manufacturer. So, every manufacturer gives a name for the product model. So for example, BMW is a car manufacturer and X12 is a car model. This is all Identity Data, but you can name the family and type however you like (For example: "Very Big Car").
Andrej Ilić
phonetical: ændreɪ ilich
MSc Arch
Autodesk Expert Elite Alumni