In order to sell a car in the state of Virginia, you will need to provide the buyer with the car's title, a signed bill of sale, and proof of insurance. The title should be transferred to the new owner and any lienholder should be notified of the change in ownership. The bill of sale should include the make, model, and year of the car, as well as the names and addresses of the buyer and seller. The buyer will also need to provide proof of insurance before taking possession of the car.