The most egregious that comes to my mind is Hoovies Garage, his wife i don't think barely speaks english and they seem to have zero chemistry and its obvious that the relationship only works because Hoovie is somehow a multimillionaire. In a recent video he gives away a BMW to one of his wifes friends and she can't even speak English, the wife had to translate Hoovie to her. The goal was to let her daily drive an old BMW and see how long a normal user would take to actually break it in real world driving, and she didn't seem to understand that it was for his channel content, so its apparent that his wife and her connections are all FOB's who used him to get into the rich part of America.
Here's his wife (timestamped)
Heres the wifes friend who can't speak any English and doesn't know how to drive
In an unrelated note there are alot of attention whores in the youtube car space, its a huge subculture. Hopefully one day ill find a car-centric related lolcow