When you set a rather low tyre pressure and view the tyre sidewall from a very spiky angle, some polys will not be displayed.
The attached replay is viewed best with a camera set close to the front tyre, like:
X: -1.0
Y: 1.0
Z: -0.5

[EDIT]FOV 100° shows it better than 90°

I noticed this also. It seems to be the texture for the tyre manufacturer that disappears.

If you move the view around it appears, but close up it dissapears, as shown in the attached two screenshots.

Tim

it seems to happen in most games. i suppose its not a huge problem though.

this was fixed already. plz close this.