How can I sue another auto insurance company for damages done to my car?

A few weeks ago, my car was legally parked and unoccupied outside of my residence when a unknown driver driving a reported stolen vehicle collided into the back of my car causing damages to my car in a hit and run. Despite video evidence and a police report, the owner of the vehicles insurance policy is denying coverages to my vehicle simply because it was a stolen car and that the unknown driver did not have permission to drive the vehicle which is why they are denying my claim but I am in the middle of taking this to small claims court to have them look through it so that I could possibly be able to be eligible for the lawsuit and I also have photos of the damage is done to the car and the estimate total of how much it will cost so I have all of my paperwork and evidence to show the judge. So will there be a case here is there a possibility of me winning this case? Thank you in advance.
How can I sue another auto insurance company for damages done to my car?
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