The present invention provides for the first time, an integrated software application architecture with all functions required by an automobile dealership, including sales, F&I (finance and insurance), accounting, HR (Human Resources)/payroll, parts, service, and E.sup.2 core (including functions in customer management, vehicle management, activity/processors, roles, user/departments, security, user interface, reports, printing, and instant messaging), together with e-business enablers, supply chain integration, and a dealer communication system. The present invention also provides relational databases, GUI's (graphical user interfaces, that is, browser based application program interfaces). The present invention also may be implemented by an operations center with a Microsoft Windows NT server providing local Ethernet or other electronic connections to several multiple remote stores for the operator, and is scalable.