I think this has been mentioned on discord and other topics alot but I didn't find a bug report. So lets make it offical. The GT3s don't have slipstream effects and also no dirty air... You can see an example of how races look without this effect Spoiler: boring boring example scene at 1:35:10 You can pick mostly any situation in this stream. As long as the car driving in front isn't doing a mistake overtaking isn't possible Please let us know when you will fix this or even if it's not possible for you to fix, let us also know. So we can decide by our own whether to use the GT3s any longer or not.