Abstract: An online data processing implemented system and method which assists used-car dealers in improving the operational efficiency of their used-car departments. The present invention overcomes many of the disadvantages of prior art data management systems by creating an improved data management system specifically focused on maximizing the operational efficiency of used-car departments. The improved system includes an Appraisal and Auction System and Vehicle Management System which collectively solves several challenges faced by used-car departments at dealerships, by complimenting and streamlining the day-to-day processes inherent in the operation of a used-car department.