Whew , that varies from State to State . In some states , if a vehicle is over ___ years old a title is no longer needed . Some states are so stupid you give up on trying to license them . Years ago there were places that advertised in magazines where you could pay $X , send them a bill of sale w/VIN , mileage , etc. , they would send you a title (Vt) and all needed papers to get your chariot on the road. Pretty slick. I think this has been shut down because the states.....well you know how states are.
with all this being said , you will just have to check where you live.