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