What is that 90s or 80s song about a girl on a train?

The song you're thinking of is likely "Midnight City" by M83, although it might also refer to "Fast Car" by Tracy Chapman. "Fast Car," released in 1988, tells the story of a girl dreaming of a better life while driving away in a fast car, often invoking imagery of travel and escape. If you have a specific lyric or detail in mind, I can help narrow it down further!