As part of the "I'm not a Hipster" update.
As part of the free “I’m not a hipster" update for Grand Theft Auto V, you can now go on a rampage in the Mercedes-Benz G63 AMG 6x6. Named “Dubsta,” the six-wheeler is unlocked after you rank 100. Other new models to arrive as part of the free update include the Hakosuka Skyline, AMC Pacer, Mercedes 240, Ford Falcon, Smart ForTwo and Citroen SM. There are also 12 extra jobs to undertake, while certain known glitches have now been fixed. Available on the Xbox 360 and PS3, Rockstar Games intends to roll out GTA V on the PC, PS4 and Xbox One this fall.