Do you still have to pay for a car if you do a voluntary repossession in the state of Virginia?

Yes.. anywhere. When a vehicle gets repossessed (voluntarily or involuntarily) and it isn't reclaimed, the vehicle gets auctioned... the person who took the loan on the vehicle is still responsible for the difference between what was received for the vehicle at auction and what is owed on the balance of the vehicle (plus repossession, storage, and auction fees).