Here I believe it mean the cars damage and residual core parts value was in excess of it's value and rendered "salvage" such that a sale of such is AYOR and the auto maker has no more responsibility about recalls or much of anything to do with it. As said - it was a parts car. If repaired the value remains low.
What I believe needs to be done to use and register legally is a new VIN # is issued and it still will need to meet all state (harsh here in Mass) safety and emission standards.
If you are still interested I suggest having the car thoroughly inspected pre purchase by an independent shop for evidence of any non professional repair work.
Ask your insurance co and find out if it's all set if you proceed with this car and check with your DMV if there are special snags you may have to go thru.
Just be careful and bid low on a car like that and brace for something unseen,
T
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Tom Greenleaf - MetroWest, Boston