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