How Do I Get Auto Insurance Without A Car? 
There are many carriers that have policies called non owned policy they are fairly inexpensive depending on your age and the state you live in . The policy only covers the liability portion and un insured and under insured if you choose the option of that which is highly recommended . It will not repair the car that you are driving but cover damages done to others . Depending on your state laws . Here in Montana the insurance follows the car first then the driver 2nd which means if you were driving a friends car and they gave you permission and you got into an accident their insurance would cover the 1st portion the 2nd would be your non owned policy because they gave you permission to use their car then permissive use would mean that their insurance liability would be responsible now his insurance may try and get some of the loss covered by your insurance . Check with your state guidelines . Or talk to a local agent . 