I saw this film as a kid in the 80's in england around the time that Dirty Dancing came out. This is all I remember about it:

A girl and a guy meet and fall in love. She has special powers and I don't think she can speak. She is chased by some people and either they or she throws fire balls while they are hiding next to a car. They are above them on a concrete ramp.

Later I think she runs away from the guy and he finds her at a bus stop in the rain and he picks her up in his car. I think she has to return to where she came from.

Any clues about this would be great as I have been trying to find out for about 15 years!

This sounds like the plot from either "The Fury," from 1978.
See: The Fury Synopsis (http://www.fandango.com/thefury_v450261/summary).

It also sound like it might be "Carrie," from 1976,
See: Carrie (1976) (http://www.imdb.com/title/tt0074285/).

Hope this helps.

I saw this film as a kid in the 80's in england around the time that Dirty Dancing came out. This is all i remember about it:

A girl and a guy meet and fall in love. She has special powers and I dont think she can speak. She is chased by some people and either they or she throws fire balls while they are hiding next to a car. They are above them on a concrete ramp.

Later I think she runs away from the guy and he finds her at a bus stop in the rain and he picks her up in his car. I think she has to return to where she came from.

Any clues about this would be great as I have been trying to find out for about 15 years!
Nope its neither of those

Was it the cindy lauper jeff goldblume movie? Probobly not