On one of the early screenshots of GTA San Andreas, you can see that in the showroom Wang Cars appeared, people. For unknown reasons, the final version of the game took them away. The script returns to the place of the visitors of the motor show.
Why were they removed?
According to assumptions, due to poor artificial intelligence of the game. Sometimes NPCs fall off the stairs, instead of taking it down. The author left as is and did not try to fix this bug.