She hit a light pole while driving down the street and then was electrocuted (fallen electrical wire) when she grabbed the top of her car door trying to get out.
I found it interesting the way she was talking to herself as she died.
Every soap needs a Bad Girl and she was it! Wonder who they will replace her with? I think she's a great actress, loved her on Knott's Landing. I hear she and Michael Bolton broke up again, wonder why they can't make it work?