Did Yona (Go Ah-sung) have supernatural/special powers in Snowpiercer?

Being a "train baby", Yona has highly developed hearing ability.

The director said in an interview that he felt the need to distinguish the people born on the train from those born on earth. Thus, the "train babies" perceive the noise of the train differently (it's natural to them). As these people were born in a dark environment, their sight is hindered, which resulted in developing other senses on a better level (e.g. taste, and aforementioned hearing).

I think it's also helpful to remember that her father was the engineer of the security of the doors, and being his daughter, she learned both directly and indirectly from him about the doors, the security and what was beyond - also enormously because how Napoleon Wilson answered before about "train babies" - she was born of it from the person who helped design and create the system, but within that system, so as a conjunction of father-creator and a person born in the train, she was the key. An angle for understanding is to compare the father, Namgoong, to the Keymaker from the Matrix trilogy.