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