Two girls are going out on a date with these two older guys. They get into a car crash on this huge bridge in.. San Fransisco I believe (I could be wrong about the location) and one or two of the four teens die. One girl is in a coma and the other sustains minor injuries. The girl with the coma's father is cheating on his wife. Hardly goes to see his daughter in the hospital. The girl in the coma eventually comes out of it but she has trouble recovering. I think, I'm not sure, that part is sketchy in my memory.

ohh, nevermind it's Accident by Danielle Steel.