A system for processing vehicle speed data is disclosed that includes a plurality of speed data systems operating on one or more electronic devices, each speed data system configured to detect vehicle speeds, to generate vehicle speed data for each vehicle and to transmit the vehicle speed data to a central data processing system. The central data processing system operating on one or more electronic devices and configured to receive the vehicle speed data, to transmit user interface control data to a remote device, and to process the vehicle speed data as a function of user-entered data from the remote device to generate a display that incorporates the processed speed data.