Do you need proof of financial responsibility if its not your car taking first drivers test in?

It depends on the state. In some states, you do not need proof of financial responsibility to take the first driver's test if it is not your car. In other states, you do need proof of financial responsibility, regardless of whose car you are driving. Check with the Department of Motor Vehicles (DMV) in the state where you will be taking the test to find out the specific requirements.