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No matter how it is paid, FICO doesn't score it any differently. Settled for less statements look worse on a manual review.
Personally I think paid or settled is always better than not.
When your CR is pulled, say for a mortgage.
I believe they can do a manual review if they chose to. I would assume it to be likely with a car anyways.
Any creditor that is considering extending you credit can do a manual review. I just used a mortgage as an example.
Many auto lenders use the Auto Enhanced FICO which is targeted more toward your past relationships with auto loans. They put more emphasis on those than other things on your CR.
The last auto loan I got was more concerned with a repo I had co-signed on than anything else.
Not saying they won't use them against you but they may not weight their decision on those alone.