On the question of encountering ghosts on Mount Chilid in San Andreas, Grand Theft Auto

That car is Glendale, not one, but two seriously damaged (irreparable) Glendale. Located in the Back-o-beyond area. Because their refresh points are all on slopes, they naturally slide down and look like unmanned ghost cars. You can't see anything unusual with night vision goggles. There is also a hovercraft on the beach near the motorboat school.

In addition, there is a video about this ghost car, you can look for it.

Others said: "that's because there is a car refresh point on the mountain, just on the slope." When the protagonist approached, the car slipped down due to inertia. This is the so-called supernatural phenomenon and one of the eggs in San Andreas. "

As for nonsense, it seems to be a rumor, which has not been confirmed so far.