The tension builds as La Llorona tries to get into the car by simply rolling down the windows, making the kid probably wish his mom had sprung for the power windows on the family car, though the film is set in the 1970s, so maybe that wasn’t an option.
The trailer wraps when we see Llorona once more, looking terrifying and making you jump.
Next, we get an extended sequence where a boy sees the woman in question and tries to keep her from getting into the car where he and his sister are hiding.