At Auto Advantage of Derry We pride ourselves on having a wide selection of Preowned Cars, Vans and Trucks in New England!! We are family owned and a full garage with ASI Certified Mechanics to make sure the Car or Truck has a safety check and is perfect for you!! At we have no hidden fees and No gimmicks and financing for everyone, no credit application is denied. Auto Advantage of Derry does Auto Sales, Auto Service and Auto Detailing Please feel free to come by our dealership at 9 Rockingham Road, Windham, NH minutes from Boston, Massachusetts or call us at 1-800-258-5670 we will help you find the vehicle you want.