Sorry, couldn’t be more helpful as, without seeing them, you can’t really tell from picsthanks appreciated
I found some centre caps on fleabay so will order some. I plan to fit some BFG K02 tyres as well to butch it up .. less chance getting stuck in the campground;-) . Good in snow too ..The original 5x118 steel wheel bolts fit the genuine Fiat alloy wheels. I know because I replaced my steel wheels with the Fiat alloys shown in your photo.
The wheel centre motifs can be replaced by Fiat ones if you wish.
I fitted black covers over the bolt heads.I found some centre caps on fleabay so will order some. I plan to fit some BFG K02 tyres as well to butch it up .. less chance getting stuck in the campground;-) . Good in snow too ..