I bought a used car in Germany as an American with no residency and no German. Here's the pprocess, includin the export-only car situation, dealers who ghosted, cash logistics, the checklist I made and ignored, and everything that broke down in the first two months.
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I'm American with no EU citizenship or residency, and I bought and registered a car in Germany in under a week using CarTurf. Here's the cost breakdown (€249 signup, €99/month, insurance, taxes), the documents you'll end up with, and what the process was like for me.