Step 1 :First, calculate the down payment by finding 20% of the total cost of the car. This can be done by multiplying the total cost of the car, $32,000, by 20%. This gives us a down payment of $6,400.
Step 2 :Next, subtract the down payment from the total cost of the car to find the amount that Jenna financed. This can be done by subtracting $6,400 from $32,000, which gives us $25,600.
Step 3 :Then, calculate the monthly interest rate by dividing the annual interest rate, 6.5%, by 12. This gives us a monthly interest rate of approximately 0.005416666666666667.
Step 4 :Now, use the formula for calculating the monthly payment for a loan, which is \(M = P[r(1 + r)^n] / [(1 + r)^n – 1]\), where M is the monthly payment, P is the principal loan amount, r is the monthly interest rate, and n is the number of payments. Plugging in the values we have, we get a monthly payment of approximately $430.33.
Step 5 :Finally, round the monthly payment to the nearest cent to get the final answer. Jenna's monthly payment is \(\boxed{430.33}\).