Car navigation device and method thereof

A car navigation device includes a filming module, a wireless communication module, a positioning module and a processing module. The processing module is coupled to the filming module, the wireless module and the positioning module. The filming module is configured to film the external conditions of a vehicle as driving records. The positioning module is configured to provide a car position to the processing module. The processing module is configured to reply to an upload indication, and upload a car position and a driving record via the wireless communication module. In addition, the processing module, replying to a download indication, downloads driving information, including at least one driving route and one or multiple real-time street view about the at least one driving route, via the wireless communication module.