So here are some pictures of my 2017 Fiesta ST passenger seat on the right, and the leather/cloth, manual adjustment Recaro out of a focus on the left. You can see that the bases are radically different, so much so that the stock seat is about an inch narrower than the Recaro base for bolting the back of the seat on. I also had to hack the First pan to work, when ultimately it didn't. Airbags swapped, cover and bolster swapped, but ultimately the swap was a failure.
I would recommend taking apart your passenger seat and going straight to the base to see if it is the same as the Recaro base before purchasing a set of Recaros. Make sure your seats are swappable before putting on the money for a set.
I'll have this clean set of Recaros for sale in a couple weeks if someone is interested. Going to be away and don't have time to swap everything back before then. Good luck guys.
I guess no pics for some reason... Try an Imgur link? Recaros are on the top of the side by side pic
https://imgur.com/a/9sa6K0D