How did you manage to do that? Was that in USA? I presume damage was on record with CarFax, etc. Did you tell new owner what happened to the car?
Finally - if you were able to show the car does not track correctly, wouldn't that be enough to re-open the claim and go back to your insurance company to properly fix it (most likely replace it at this point?)
You can find things on salvage titles that are literally two or three cars welded together.
The only thing that keeps me from doing that is not know what to do with that car when I do finally want to get a better car. It will have no value as a trade in, and I wouldn't want to have 2 insurance payments. Are they even worth anything as a donation?
But to answer the question, yes, even a dead vehicle will have some residual donation value (or you can sell it to a junkyard for $200-500 scrap value).