Browse the internet and market nearby. Never make a decision in haste because it makes a lot of waste that cost you later in the life. Decide what you have to do beforehand and conduct research about different types of loans available that will fit into your scenario. Carry out the cost analysis and compare the different alternatives. Auto loans usually differ in different financial institutions.
If you have a good friendship with the manager of some bank, visit him/her. Conduct a meeting in which you will discuss your prospects and explain every trivial detail to him/her. Try to find out how much money you can receive in a form of an auto loan because that will put you in the driving seat while dealing with the car dealer. You know how much you can afford so you will have a particular bargaining target that will allow you to progress under a particular plan.
Let the dealer decide what should be your monthly payment because they would make it feasible for themselves and be happy with your attitude. You already know that you have that much money at hand so there is no point in pinching the dealer with your input about the installment plan or anything else related to that.
Try to convince the dealer with zero down payment figures or reduce the figure as much as you can without hurting the deal as a whole. It will help you to save the cash flows for future endeavors.
Try to get a short term loan because that will have a low interest rate associated with it.