I've uploaded another image to demonstrate what I mean.
Could it be that it caused by the near- and far-plane settings? It seems that the problem only occurs when the camera is zooming in towards a car from a large distance (>150)
Yes... it also occurs when the camera is (for example) positioned near the overpass at the long straight on Blackwood, looking towards the chicane (after the first corner (going clockwise)).
It really doesn't matter.. I think the occlusion culling just isn't working properly.
The view clipping is showing at non-square resolutions. Some large planes (such as the grass or sky in the attached image) aren't displayed when running the game in non-square modes.