Same interest, $1112.97? How did you calculate?? Formulas?
CAR not house?
CAR finance is FLAT rate, not amortization.
Let C be your capital
I be Interest rate in percentage
N be number of Years, (i.e. 12 N months)
In your case,
P = $10,886.29
I = 3.9
N = 5
Since it is FLAT rate,
hence total interest you have to pay is P * I * N = 2122.82655
Total money you have to pay in 5 years = P + 2122.82655
= 10886.29 + 2122.82655
= 13009.11655
Each month you have to pay: 13009.11655/ 5 * 12 = 216.82