For most people, the SR-22 is something they have never even heard of before. Others have heard about it in passing because a friend needed one, but they don't really understand its role in car insurance. In reality, very few people know what this is and why they would even need one. This is actually a good thing. It means you are driving responsibly and obeying the law. Just in case you ever do find yourself needing an SR-22, here are some things you need to know about it.