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