Detailed information about a particular used motor vehicle is quickly provided to a potential buyer having a personal digital assistant equipped with a receiving means. To provide the information, it is first necessary to obtain standard information about used motor vehicle values in digital form from a provider of such information. It is then necessary to obtain specific information about an inventory of used motor vehicles from the owner or seller of the vehicles. The standard information and the specific information are then integrated on a server computer and transmitted to the potential buyer.