This coverage reimburses you for the cost of your rental car if your insured vehicle is in the shop or is unavailable due to an accident. You need to have comprehensive and collision on your policy in order to add rental car coverage. In certain states, Esurance offers CarMatch Rental Coverage®, which covers the rental cost of a vehicle comparable in size and body type to your regular ride.
There are certainly insurance carriers and policies that will not cover any driver not specifically named in the policy. Other relevant facts include where the “other driver” resides and if they are related to the insured. In general, if someone is living in the insured’s household and regularly drives the insured’s vehicle, many insurance carriers expect you to have that person named on the policy. They will need to undergo the same underwriting and qualification process as any other policyholder.
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.