Sure you can, if you can find a seller who will accept bitcoin as payment.
I have a family member that owns an auto business. I believe he surely would sell any of his (used) cars for bitcoin. I don't know if he's done that yet- I should probably ask him about that. I know he has used bitcoin, but I don't think anyone has approached him yet to actually try to buy a car with bitcoin. I could ask. If you want me to, reply here and lmk. I'll see the reply. His business is in Virginia. If you happen to be near VA, definitely let me know.
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