The different models are a recent change, this year I think. Until then they were all the Ford GT.That's pretty cool having the Mustang model, both of my boxes had the Ford GT model in them.
You must have the same dealer I had. Got royally screwed because they knew they had me and I couldn’t go elsewhere. The epitome of the stereotype shonky car dealers. Gift packages started in Oz December 2019.I got my car in November 2018 so maybe they didn't have them then I don't know. I don't have a good relationship with my dealer now because of other issues. So I wouldn't bother going back to them.
Or dealer personnel keep them.As far as I know they have been giving these out for about 5 years, so you should have received one. It is up to your dealer to process the order for the gift pack so maybe they didn't do their job.