I guess I should qualify my statement. I have made money buying and selling old cars, but only by doing minimal work on them. if you buy an antique auto reasonably ,because it wont run or has been stored for a long time , and clean it up and make it run, you caN DO QUITE WELL. If you restore one from the frame up , even if you do most of the work yourself , you will make ,maybe, fifty cents an hour. The question you have to answer when doing an old car is "am I doing it because I want it or to make a buck" . That should decide your course of action.