I purchased a brand new toyota SUV last august 2007. my agreement with toyota is to pay the balance in 2 years. but if i can complete the payment in one year period only, will there be a corresponding discount (rebate)?

can anyone pls help me understand (roughtly) how much more should i pay, if i have already paid 9 months installments. my monthly ammortization is 42T pesos for 2 years.

Thank you.