To boost sales, car dealerships often offer customers the chance to pay off the purchase price of an automobile at 0% interest for a specific number of years followed or choose an instant monetary discount on the price of the vehicle while making regular monthly payments with interest compounded monthly. Suppose a person purchases a car with no money down. Search automobile sales advertisements for this type of promotion. Note the terms: 0% interest for ? number of years, the instant dollar discount, the retail price of the vehicle, and the interest rate of the loan. Given those figures, which is the better deal and why? Support your answer with calculations.