keys can be made for the existing locks. Problem I had was finding a lock smith that had a blank for the door. Engine key was no problem. I finally found a lock smith that ordered blanks and made the keys. On my Delorean, even though the keys are double sided, they can only be made one way. We went thru 4 blanks before fiinding the correct combination. I had to buy 10 blanks before they would order them. Dave L.