The car has been sold but the ownership has not been transferred. If there is a traffic accident, the transferee should be liable for compensation, and the original owner should not be liable.
 The legal basis is the Reply of the Supreme People's Court on Whether the Original Owner of a Series of Purchased Vehicles Should Be Responsible for the Damage Caused by a Traffic Accident
 Jiangsu High People's Court 
 Your hospital has received the Request for Instructions on whether the original owner is responsible for the damage caused by the traffic accident of the motor vehicle due to the failure to handle the transfer formalities for the serial purchase of the vehicle. Through research, it is believed that: the serial purchase of the vehicle has not handled the transfer formalities, because the vehicle has been delivered, the original owner can neither control the operation of the vehicle nor gain benefits from the operation of the vehicle, Therefore, the original owner shall not be liable for the damage caused by the traffic accident of the motor vehicle. However, the act of not going through the transfer formalities for serial purchase of vehicles, in violation of the relevant administrative regulations, shall be subject to the adjustment of its provisions.