Diamond Cars R Us Inc - Used car dealer in Franklin Square, NY. Welcome to Diamond Cars R Us Inc. We are a full service New York used car dealer located in Franklin Square serving the towns of Nassau County Garden City NY, Floral Park NY, Elmont NY, West Hempstead NY, New Hyde Park NY, North Valley Stream NY, North New Hyde Park NY, Hempstead NY, Valley Stream NY, Mineola NY, Lynbrook NY, Uniondale NY, East Rockaway NY, Baldwin NY and Roosevelt NY. We take pride in the quality used inventory that we carry that include Acura, BMW, Dodge, Ford, Honda, Hyundai,
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