Dennis & Co. Auto Group, Inc. headquartered in West Nyack, NY is one of the largest auto dealerships networks in the Metropol ... itan New York Region. Dennis & Co. currently operates nine retail auto stores: Eastchester Chrysler Jeep Dodge Ram, Riverdale Chrysler Jeep Dodge Ram, Eastchester Motor Cars, Kia of West Nyack, White Plains Volkswagen, Volkswagen of Nanuet, and Greenwich Ford. read more