once you sell your car(s) its game over. I almost made that mistake when I got my career started and a family member convinced me to keep the cars and I am sure glad I kept everything now. Cars don't eat and don't really cost anything while sitting in a garage. If you are tired of your car let it sit for awhile and one day you will want your old friend back and it will be waiting for you. A car can hangout for many years before it starts getting messed up.