Mark was driving on the highway and all of a sudden a rock hit the windshield and created a crack. As soon as Mark got home, he called his insurance representative and was told that he didn't need to worry, he had comprehensive coverage which may help to repair or replace a broken or shattered windshield, he may only have to pay his deductible and the rest would be covered.
No states require comprehensive coverage, but those who finance or lease their car will probably find that their lender or lessee requires it. Lenders and lessees are the official owners of the vehicle, so they want to make sure they're adequately protected in case of an incident. For the same reasons, you'll rarely be able to buy comprehensive insurance without also purchasing bodily injury liability and collision coverages.
Third-party claims occur with less frequency in no-fault car insurance states, where you first look to your own insurance company to recover, regardless of who is actually at fault for an accident or injury. Generally, no-fault states have mandatory minimum insurance requirements, meaning that every driver carries a statutorily dictated minimum amount of insurance. If, after you’ve made the appropriate claims to your own insurance company, your claim meets your state's monetary threshold or "serious injury" threshold for stepping outside of no-fault, you may be able to initiate a third-party claim.
One of the most common third-party claims in no-fault states is the “mini-tort” claim. In no-fault states such as Michigan, “mini-tort” laws allow you to claim a small, statutorily-mandated amount of money from “the other driver’s” insurance company. Most no-fault insurers will require you to collect the mini-tort amount to offset whatever they are obligated to pay. Another common instance of a third-party claim in a no-fault state is an employment-related claim. Injuries or damages sustained in the course of your job or in a company vehicle often result in third-party claims.
The cheapest car insurance, period, will likely carry the minimum coverage required in your state. In most states, this is liability insurance only, which covers property damage and medical bills for others due to accidents you cause. Some states also require uninsured and underinsured motorist coverage, which pay for your injuries or damage if an at-fault driver doesn’t have enough insurance.
Comprehensive insurance is a coverage that helps pay to replace or repair your vehicle if it's stolen or damaged in an incident that's not a collision. Comprehensive typically covers damage from fire, vandalism or falling objects (like a tree or hail). If you're financing or leasing your car, your lender likely requires comprehensive coverage. If you own your vehicle outright, it's an optional coverage on your car insurance policy.