Everywhere you go people think that they're surrounded by the worst drivers in the country. So GMAC Insurance did a study of licensed drivers to actually determine where the best and worst drivers are congregated. The worst drivers are found in New York, New Jersey, Washington D.C., Massachusetts, Rhode Island, Pennsylvania, Illinois and Georgia. The most knowledgeable drivers live in Idaho, Alaska, Minnesota, Wisconsin and Kansas. Think you're a great driver? You can take the free test to determine where you rank at GMAC Insurance.