As you can see in the picture, when the wheel is viewed from the out side, the spokes are there, but when you look at it from the inside they are invisible
as u already can see in this picture its very hard to see,and i dont even think its a bug, more a feature. to save some fps
if u count that as a bug, u also would have to count the missing axles
I got the wrong end of the stick here, thought you were on about something else, bit yeah, I assume it's the rendering engine (Same as the mini windscreen in the FOX won't show smoke or dust)