I have a track where the pitlane goes over the main track, as shown in the screenshot. The trouble is, whenever the AI cars go under the tunnel while racing, they slow down to about 20/30mph, when I can easily go through the tunnel at about 100/120mph. I've tried the ISI AIW editor, along with layman's guide, but it's just too complicated. When racing the AI on the track, I have to set the strength to 120% just for their lap times to be similar to mine. However, this means they are overpowered in the corners, and this tunnel issue cancels that out. I get left trailing about 5 seconds during a lap, and when I get to the tunnel I am suddenly only a second behind. This really ruins the racing for me, and as I don't play online, AI is important. I don't want to change the layout of the track, because this was my original plan and I really like it. If you want to have a look at the AIW, the track can be found here: http://www.rfactorcentral.com/detail.cfm?ID=Croydon Grand Prix Download v1.6. There are no nodes under the tunnel, so there are no sudden changes of direction. This has been a problem right from when I started this track, and I still haven't found a solution. Help?