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