The GTA Online Doomsday Heist update added the Mammoth Thruster, a military-grade vehicle that uses propellers to lift users off the ground. Related: What GTA Online's Best Warstock Vehicles Are Players have modded the Jetpack into Grand Theft Auto 4 (where it acted more like a helicopter than an actual Jetpack) but no such vehicle actually exists in either GTA 4 or Grand Theft Auto 5's single-player campaign. This personal flight vehicle can only be unlocked by completing a specific mission in Grand Theft Auto: San Andreas. The Comet and Bullet sports cars might've been the fastest cars on San Andreas' streets, but they pale in comparison to the title and series' most unique vehicle: The Jetpack. GTA 5 alone has hundreds of vehicles, and a constant stream of GTA Online updates ensures users always have new ways to cruise through Los Santos. Even so, the 2004 release of Grand Theft Auto: San Andreasstill touts the best vehicle ever to be added to Rockstar's open-world series. Throughout the franchise's 24 years of existence, it has included countless car models, armored vehicles, and tricked-out dune buggies. One of the many allures of Rockstar's Grand Theft Auto games has been taking a destructive joyride in any vehicle players stumble upon.