I haven't seen this officially mentioned anywhere as yet but possibly it is but I may be just blind lol. But to me tyre wear has zero effect in the current build v107 and all those before. I have only ever done 2 full fuel runs so far, one a while back in the f3.5 at Mills and just now a full run in the f2 at mid ohio. During the full runs both times as the fuel load has gone down my laptimes have been pretty much the same as with new tyres and the same fuel load. Here is my motec of a full run at Ohio in the F2 with just me on track, lap times in the data are .2 faster then the real times for some reason the track is a fraction short in motec. http://www.mediafire.com/?t2hb33eczptzc32 Here are the track conditions for the session. View attachment 4137 I did this also to see how much of an effect track rubbering has on the car, but due to heavy fuel at the beginning the early laps have hardly any grip. First few laps were 1:15s, lap 9 was in the 13s, lap 14 got to the 12s, lap 16 in the 11s and lap 41 got to the 1:10s My best lap here from my last session here is a 1:10.417 AI rubbered track and 10 laps of fuel, this session my best lap was 1:10.873 on lap 49. My 52nd lap was under my PB time but I royally ^&%*ed up the last turn losing concentration as my fuel light was blinking losing .7 in the last 2 sections and only being .2 slower then the fastest lap that session. Would have been about 1:10.1 if I didn't get stuck on the last kerb lol so I think with the same amount of rubber as the end of that session 1:09s are quite possible. I know that tyres can go off if you overheat them through bad setup or over-driving but if you keep them from overheating they will do the same times all the way around just dependent on fuel load. Any idea from ISI when they may implement tyre wear as this is a pretty important aspect for modders to get the tyres to last similar to their real world counterparts.