If you want to find out who owned your car before you, you can apply for a report through a site such as Carfax. Carfax will give you a full report on your vehicle such as if it was in any accidents, and it will show you who owned the car before. It is very low cost to do this, and all you need is the car's VIN number to be able to run the report. You should see the previous owner's name on the car title since they had to sign the car over to you. You may also try calling the DMV to get info on who owned it also.