I would agree. I just visited the Ford site and Super Duty does seem to be part of the name as a whole, not just a "secondary" name. If you want, I can help you to rename them. I've been meaning to look at the Ford trucks to make sure they're correctly identified, since I know a thing or two about them

One thing: So if we go ahead with this, then in the field name would go, for example: F-Series Super Duty

right?