One of the first things I tried on the new version of the DRM's was to put the cooling factor on the tyres to 0 (zero). The tyres cool off ridiculously fast for some reason. So fast that any heat generated is gone within mere seconds. I'll look into the folders tonight and see what else I did but once you get the tyres to run in an optimal temp, the cars start sticking more. I may have redrawn the temp percentages (perfcurve) for the tyres as well.