Mammoth
Mammoth is an automotive company that is based on Hummer. In GTA IV that produces vehicles such as:
Albany | American Motors | Annis | Benefactor | BF | Bollokan | Bravado | Brute | Buckingham | Canis | Cheval | Classique | Coil | Declasse | Dewbauchee | Dinka | DUDE | Dundreary | Emperor | Endurex | Enus | Fathom | Gallivanter | Grotti | Hijak | HVY | Imponte | Invetero | Jobuilt | Karin | Lampadati | Liberty Chop Shop | Liberty City Cycles | Maibatsu Corporation | Mammoth | MTL | Nagasaki | Obey | Ocelot | Overflod | Pegassi | Pfister | Principe | Progen | ProLaps | Schyster | Shitzu | Speedophile | Stanley | Steel Horse | Tri-Cycles | Truffade | Ubermacht | Vapid | Vulcar | Weeny | Western Company | Western Motorcycle Company | Whippet | Willard | Zirconium