Collision coverage is generally sold with a separate deductible. Even if you are at fault for the accident, your collision coverage will reimburse you for the costs of repairing your car, minus the deductible. If you're not at fault, your insurance company may try to recover the amount they paid you from the other driver’s insurance company and, if they are successful, you'll also be reimbursed for the deductible.
Therefore, a very basic and often incorrect answer to the wrong question is that auto liability coverage generally follows the driver, while auto physical damage coverage generally follows the vehicle. However, more often than not, you will be asking the wrong question. As long as a driver has the vehicle owner’s permission to operate the vehicle, the owner’s policy will provide coverage no matter who the driver is. The vehicle owner’s policy should cover injuries and property damage. However, exceptions do exist. In most cases, therefore, the right question to ask would be “Is there insurance coverage under these specific facts?”
Drive Other Car insurance is similar to an Individual Named Insured Endorsement. If you need to borrow, test drive, rent, or lease a vehicle, Drive Other Car insurance will extend the coverages you’ve purchased for your commercial auto insurance policy - like Liability insurance, Physical Damage insurance, Medical Payments, and Uninsured Motorist Insurance, to a non-owned car.