On the dealerships behalf its potentially a criminal case as well as civil.
The owner of the vehicle can claim it on the insurance, say it was stolen, and that he had no clue how it got into the dealerships posession.
The guy who gets hurt is the buyer of the stolen property.
The insurance company wont pay out for a stolen vehicle especially if the paperwork is not in the buyers name on several grounds.
Its really going to come down to who says what.
I can insure your car if I wish, I dont need to own it. But if the car gets stolen I dont get compensated for YOUR property. It was your property, and your loss.
Who ever owns the paperwork gets the posession of the vehicle and any insurance money as a result.
If the owner plays stupid its up to the buyer and seller to sort it out in criminal/civil court.
If you go criminal about it the dealership would most likely settle outside of court. Or it may go to court and the dealership may take a plea bargain to get out of going to trial during the arraignment.