I also spotted this when driving on the gravel parts of Blackwood RallyX. I stayed in 2nd gear (in the XRG with autoclutch) and was driving/sliding round the gravel bends at full throttle and the clutch was getting hotter until it went red after about 3 laps. On the tar sections it seemed fine (but then again I wasn't getting much wheelspin on the tar in the XRG), but the gravel parts seem to create clutch heat when the driven wheels are spinning and the clutch is not being used (i.e I didn't change gear in the middle of the corner etc)
Another potential bug: does the clutch simulation take the mass of the car into account? I noticed its as easy to overheat the clutch on the LX4 as it is to overheat it on one of the heavier road cars. I'm not sure if it should, but surely a lighter car should put less strain on the clutch given the same shifting behavior and driving style, and should therefore heat up less? I say this because I have a Lotus Seven (and I know quite a few guys who participate in the Lotus Challenge which is a race series for Lotus Sevens here in SA) and I have never heard any complaints of clutch overheating (nor had any myself in my Seven) even when flatshifting/not lifiting off much when shifting over long race distances.
Hey thanks everbody, I'm really looking foward to racing for vMax, should be great fun. As for SA drivers taking over the world that may be difficult, there's not many of us, we an endangered species