High Quality Content by WIKIPEDIA articles! GpsDrive is a computer program designed to act as a vehicle navigation system. The program displays its user's position, obtained from an NMEA-capable GPS receiver, on a zoomable map drawn on a computer screen. The map file is automatically selected depending on the position and preferred scale. Currently, GpsDrive uses raster images of maps, but future plans for its development include the utilization of vector data from projects such as OpenStreetMap. Speech output is supported if Festival software is running. GpsDrive is designed to work with all Garmin GPS receivers having a serial port, as well as other GPS receivers with NMEA protocol support.