If a thief steals a car that sells for $10,000, is the dealership out the cost of the car, or are they out the cost of the car plus $10k because the thief might

If a thief steals a car that sells for $10,000, is the dealership out the cost of the car, or are they out the cost of the car plus $10k because the thief might have purchased the car at some point?