This is a suggestion for the devs who mostly work on the exporter. I noticed that cars fitted with any automatic transmission, (Both advanced and regular, as well as Dual Clutches) when exported exhibit some very unrealistic behavior. Now, I understand BeamNG automatic transmissions aren’t perfect by any means, however the ones imported from Automation are particularly odd acting. Most of them do not like to shift up in gears when cruise control is activated, and often will stay in a much lower gear than a car usually would. This is usually very prevalent cars where there is a low final drive ratio, where the engine should be turning very slowly at highway speed. What I think the issue to this is after pulling up the shift debug in BeamNG, is that the default aggressiveness is far too aggressive, especially on advanced automatics. The game both holds the aggressiveness in too high of a state for too long. For example, in the scenario of accelerating on a highway with a long geared 5 speed box, the transmission will hang in 3rd gear for far too long before down shifting in to 4th gear, and then once cruise speed is attained, the transmission may shift down into 5th gear, however it will immediately blip back to 4th because the load on the engine is increased, and will continue the cycle of up shifting to 5th and down shifting into 4th. Another scenario is that the transmission will sit in 4th gear and refuse to shift down into 5th gear unless you are doing an unrealistic speed, because the default aggressiveness doesn’t drop the down shift speed to a large enough extent.
I hope this makes some sense to y’all and if you have any questions, please do ask so I can explain myself better.