Long Island Used Cars Dealership Mid Island Hyundai Lowers Prices and Makes Your Payments On Monday Long Island used cars dealer Mid-Island Hyundai reduced prices on its entire used inventory. One week later Mid-Island Hyundai announces an exclusive sale offering payment amnesty or cash back in lieu of payments. CENTEREACH, N.Y. â Mid-Island Hyundai is announcing a July used car sales event âÂÂPayment Amnesty,â exclusively at Mid Island Hyundai. This event will provide customers with an opportunity to have up to three monthly payments made by Mid-Island Hyundai.