My Z has TSW Thruxton wheels, but have been missing the center caps/emblems since I bought the car.



Here's what these wheel are suppose to look like.



My wheels still have some plastic piece in the center. Is this part of the center cap? Does the emblem with the TSW logo clip into this or was that just a decal the previous owner pealed off? It's not clear to me what the hole in the plastic piece at the center of my wheels is for?