Parts of your auto insurance policy may have deductibles. A deductible is the portion of an insurance claim you agree to pay. Your car insurance provider covers the remaining cost. Your deductibles play a part in how your rates are calculated. Depending on how much financial responsibility you take on in the event of a claim, your auto insurance rates will reflect your commitment. Take on more responsibility (i.e. increase your deductibles) and your rates will lower, take on less responsibility (i.e. decrease your deductibles) and your auto insurance premiums will increase.
You can save a bit of money by paying for your insurance once per year rather than once per month. This helps the insurance company save on the administrative costs of billing you every month and a lot of the time they will pass the cost savings on to you. It means you will have to pay a larger amount all at once, but in the long run it can help you save as long as you have that money up front.