I had a FFS pull up behind me the other day, saw the dark mesh front, when he went by me on left turn lane I saw the quad exhaust and I noticed a small maybe 6- 8 inch mast antenna, I am thinking it was a 2017 but not sure. The angle he was at I really could not tell what color it was maybe gray. Every now and then will some usually black and I think mostly 2017 as they don't have the shark fin. I just don't get a chance to really get a good look. Ford must have kept track of how many they sold as they stopped making them because they did not sell enough of them. But I have searched the internet and have not been able to find the numbers on the 2017-2019 FFS, Maybe I am not searching the right phrase? I initially never new that the 2017 was sparsely equipped compared to the 2019, but I think some 2017's are pretty well equipped. I am not sure they had the 401 option. The only reason I did't look at the 2017 was I read about the dead batteries and Ford never really came out and said they had a fix for that.