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