GAP insurance and full coverage insurance are two different types of insurance that provide different types of coverage. GAP insurance is designed to cover the "gap" between the actual cash value of your car and the amount you owe on your auto loan if your car is totaled or stolen. If you owe more on your car than it's worth, GAP insurance can help cover the difference. So, if you have a new car or a car with a loan and you owe more on your loan than your car is worth, then you may want to consider getting GAP insurance to protect yourself financially in case of a total loss. However, if you have an older car or own your car outright and do not owe money on a loan, then GAP insurance may not be necessary.