I have a car gifted to me by a non related friend. It is registered in my name. I do not have a receipt or letter stating the car is mine. My friend organized all of the necessary paperwork to register the car in my name. I have had the car for 2 1/2 years. I am no longer friends with this person and they have demanded I return the car within 14 days or they will begin legal proceedings to take it back. I have copies of all messages stating the persons intent to gift it to me as well as several messages where I offered to give the car back and the person refused, stating it is my car. Should I be worried that this person will successfully take this car from me? Is there anything I can do to prove ownership?