The mud or rust on top of the car makes me ask how the water inside the vault could have been so turbulent. If water was seeping into the vault, the sediment would all be on the bottom, or at least most of it would. For there to be an inch of mud or rust on TOP of the car, there must have been quite an inflow/outflow of water at some point.

I can't wait to see this thing. It would have been better to set the car in a warehouse with a curtain around it. But if they had done that, no one would be talking about it or interested in it. It would just be a collector car.