Mandy is interested in purchasing a new automobile for personal use. The dealer is offering a special 1.9% interest rate on new cars. Last fall, she opened a home equity line of credit with her bank. If she uses the line of credit to purchase the car, the interest rate will be 7.95%. Write a letter to Mandy explaining whether she should finance the purchase of her car through the dealer or use her home equity line of credit. Assume Mandy is in the 35% tax bracket.