Auto insurance premiums depend on the insured party's driving record. A record free of accidents or serious traffic violations typically results in a lower premium. Drivers with histories of accidents or serious traffic violations may pay higher premiums. Likewise, because mature drivers tend to have fewer accidents than less-experienced drivers, insurers typically charge more for drivers below age 25.
When an insured allows other drivers to drive his vehicle, then, and only then, does the question of whether insurance follows the car or the vehicle become even awkwardly relevant. The right question to be asking is not whether insurance follows the car or the driver, but whether or not other drivers will be covered by the insured’s auto insurance.
Certain factors must be considered in determining if an insured is covered when driving someone else’s vehicle, including the reasons for driving the vehicle, if the insured had permission or not, or if it was a rental or dealership loaner. In each case, the individual circumstances and state law involved will factor into the outcome, but another policy might be considered primary over the insured’s.
Comprehensive car insurance covers damages from an "act of God," or events that are not caused by a car driving into something else. An "act of God" can include things like damage from a heavy tree branch falling on your car. Since you have no control over when or why a tree branch would fall on your car, this kind of accident would be covered under your comprehensive policy.