Get comfortable reading the owner's manual. Whatever the owner's manual recommends for maintenance, do it and a little more. Maintenance schedules and advice about taking care of cars are listed in many books. The longer a vehicle can be kept in good running order, the greater the value of the investment. License, Registration, Taxes and Interest License, registration and taxes on a typical car vary from state to state and can run from just a few dollars to many hundreds.
Some states have other fees.
Check with the Department of Motor Vehicle's licensing agent for the amount of the fees and their due dates in your state. That way, when they come due, they won't be a surprise. Unless you pay cash for the car, the payment will include interest. Make sure to get a good rate. Used-car loans have shorter terms than those for new cars because a portion of the useful life of the vehicle is already gone.