Deshalb gleich noch beibringen, dass der Sicherheitsgurt schmarrn ist.

see the docs here: https://documentation.beamng.com/support/launcher_support_tools/clear_cache/

night driving is finally bearable

the game has a verify files and cleanup tool, would recommend using that. i had some performance issues after updating the last few times as well, and these fixed it for me every time. could also be mods though