Cars Q&A

I have a M 800 BS III bought in Nov 2007, Its just ran for 10000 Km till now, and its single handely driven. I have a Loan on the same and the balance amount is Rs.170000/- approx. We are a family of 5, and now I want to upgrade to a bigger car like IKON Disel, or you can suggest. We usually go to Pune, Nasik, Banglore and want to use the same for office which is 80-90Km to & fro. Please suggest how to avail a new loan so that my M 800 can be considered for downpayment. Is there any bank which consider to extend my current loan, so that I do not need to shell out downpayment from my Pocket? what should be my plan of action for a new car.