My 06 with about 2.5 yrs of autocross on it, has developed some “play” in two areas.
The steering rack now has an audible amount of lash. Probably from all of the jerky, err, rookie steering inputs.
At the diff, the drive shafts have some up and down play (don’t know the proper term) that I haven’t noticed before. Other parts of the diff and the Car in general, seem ok.