In many cases, a car accident will lead to a lawsuit of some kind. That being said, this is more the exception than the rule. Most of the time, accidents are settled by the insurance companies of those involved.
Below are links to several car accident news stories from the Boston area:
If you were involved in a car accident and sustained injuries due to the negligence of another party, contact a personal injury attorney to discuss your situation and whether or not you have a case. This is the quickest way to determine how to approach your unique situation.