Jamal is looking to purchase a car. He is not sure whether to pay cash for this car or to take out a loan. The car he is looking at costs $18,000. His current car is worth $4,000 on a trade in. He can get financing for the loan at 3.5% interest and a loan for 3 years. He currently makes $65,000 a year and does not itemize his taxes. His savings account currently yields 1.5% annually. What would you suggest that Jamal do? Explain your reasoning and support your conclusion with numbers.