Since there's no official bug-thread, please, let me raise couple of things here. I'm using most recent Steam version. All settings on max. 1. AI problem at Jacarepagua: On main straight every truck hitting an outer curb gets bumped 2. LED lights look visibly strange (squary): 3. Sky problem at Jacarepagua 2005: Those were my issues. Now the question part: Watching Goiania onboards I noticed that every car slows down on the main straight right after start/finish line. You can see this happens in the videos: @ 03:31, 06:09, 16:50 etc... https://www.youtube.com/watch?v=Al9S-2ympFk @ 02:25, 04:16, 06:10, 08:04, 10:38 etc... It does not look like typical braking before the corner, because the drivers decelerate and then accelerate again. To me it looks like some bump-place or something like that where trucks have to slow down a bit for safety (most certain) reasons.