This disc was modeled for Tamiya TT-01, it is also placed on the 12mm hex of other chassis. This is the original BBS RV724 that was used by SUBARU in WRC 2006. I also have a full body and other parts of a Subaru Impreza 2006 WRC
The whole model can be downloaded this:
https://cults3d.com/ru/3d-model/razlichnye/subaru-impreza-1-10-r-c-body