A garage editor is a program that allows the user to modify, or edit, the contents of his garage. It is used for spawning vehicles that are normally unseen in-game (such as the FBI Truck from Grand Theft Auto: San Andreas) and for creating uniquely-colored and proofed versions of vehicles. Some of the more sophisticated garage editors allow the created vehicles to stay inside the garages, so that when you drive a car out, the game will generate another one inside the garage. Extreme caution must be applied when spawning particularly large vehicles (such as the AT-400 airplane) inside small garages (such as the one outside the Mulholland Safehouse). The game might crash if you do so.