Finding the right car under $500 down in Troy, MO is just a few simple steps away. Each used vehicle in Troy listed can be bought with $500 down. Buy a car with 500 dollars down in Troy and get an auto loan with $500 down at a single convenient Troy Missouri location. Our St. Louis area used car dealers offer you the best chance to finance a used car in Troy with a low down payment and a monthly payment that fits within your budget.