Computerized on-line ordering of motor vehicles, namely, automobiles, trucks, light-duty vans and sports utility vehicles; providing an on-line interactive data base in the field of motor vehicle sales and leasing; preparing and disseminating advertising and electronic billboard advertising in the field of motor vehicle sales and leasing; computerized data management in the nature of information storage and retrieval in the field of motor vehicle sales and leasing; providing shoppers' guide information in the field of motor vehicle sales and leasing