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