The Heart of Gold is a fantastically advanced spaceship capable of transporting to anywhere without traveling in hyperspace by means of its Infinite Improbability Drive. The ship has been featured in every incarnation of The Hitchhiker's Guide to the Galaxy, including the 2005 film version.
The Heart of Gold comes equipped with Marvin the Paranoid Android, a robot with GPP (Genunine People Personality.) It also has doors that hum pleasantly when they open and close. The ship is navigated by Eddie the Computer.