I caught about 3 of those deals on ebay. Same MO. Moved from the states and took the car with them, however can't register it there for whatever reason. I looked up VINs and then asked them a question based on that info, and their stories never checked out - like the car was registered in TX but they lived in CA or something like that. I always ask them for a picture of the VIN and that's the end of it.