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.
Collision insurance is a coverage that helps pay to repair or replace your car if it's damaged in an accident with another vehicle or object, such as a fence or a tree. If you're leasing or financing your car, collision coverage is typically required by the lender. If your car is paid off, collision is an optional coverage on your car insurance policy.