Method and system for downloading a latest map

A navigation device for transmitting latest map data, comprising a processor configured to:

• transmit a scheduled driving route stored in a local storage of the navigation device to a navigation device of an adjacent vehicle, wherein the adjacent vehicle is adjacent to a vehicle including the navigation device for transmitting the latest map data;
• receive a request of transmitting the latest map data based on the scheduled driving route from the navigation device of the adjacent vehicle;
• and
• display real-time download information of the latest map data in response to receiving the request of transmitting the latest map data.

A navigation device for receiving latest map data, comprising a processor configured to:

• receive a scheduled driving route from a navigation device included in each of a plurality of adjacent vehicles, wherein the plurality of adjacent vehicles is adjacent to a vehicle including the navigation device for receiving the latest map data;
• determine identical path matching percentage information about each of the scheduled driving routes;
• and
• display a download expected time information about each of the scheduled driving routes, based on each of the scheduled driving routes and the latest map data stored in each of the plurality of navigation devices.