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