For what it is worth, I put $572 in the car 10 days ago for an oil pan gasket, tune, and window regulator work.
That adds no value to the car at all. About the only things that do would be a new or rebuilt engine and/or transmission, and 4 new tires.
From the comps being posted here, I would agree that the offer sounds low. As I posted earlier, I would ask them for the documentation they used to determine the value of the car, and the value of the salvage. That gives you more info that you can use to negotiate a higher settlement.
