Ok, I see. I think in real life, the trailer will break or detach from the car, or it will be dragged almost jumping :) So, in real life is better way to not allow very big angle of direction for the trailer.
What about wheels rotation: in fact, in this game, the wheels retain the angle of rotation, but for a very short time, as if the driver quickly turns the steering wheel back if the arrow on the keyboard is not pressed, because I am used to the fact that in games movement without a pressed arrow straight-line movement.
Thanks for the clarification!