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