Suggest something of a compromise. Since you seem determined to sell the copper car, keep the white car for a year. Put a cover on it and stick it in a friend or relative's barn or a storage unit. Make a note to yourself where it is and the date you stuck it in there. If you haven't missed it in a year, take it to where you end up settling and sell it. Yes, it's only a car. But it would be better to part from it with no regrets.
Best of luck in this new phase of your life. Have fun, be safe.