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