That wouldn't really be very good news if we were talking instead about an aircraft ...
I completely accept that. Its why the quality of the packing/preservation will be so important. To be fair, Babs was immersed in a sandy beach for 40 years, and salt water is a good electrolyte. If you read the history, they simply dug a big hole in the sand and chucked the remains of the car in. When Wyn Owen dug it up, they weren't sure they were going to find anything recoverable at all.
I used to get the opportunity to race a pre-war 4 1/5 litre lagonda. That had been covered in army grease and buried in the Far East as the Japanese approached. The owner survived the war, and returned to dig it up - to find that termites had eaten everything digestible, but that the mechanics were still pristine. He has it re-bodied by a local boatbuilder working from a photo of a LeMans car. All considering, he did a good job.
Until they dig something up we are all guessing.