I know this topic has been broached and is old news, but I just watched this video of how VW crooked their emission data for the USA. I am shocked at the extent of their deceit and how they programmed their cars to use AI and fake test data.
https://www.youtube.com/watch?v=k65Z-62hIr8
https://www.youtube.com/watch?v=k65Z-62hIr8