Hennessey have taken the 700 hp Ram TRX , added two more wheels and bumped it up to over 1,000 hp. Called the Mammoth 6×6, it follows in the footsteps of the other Hennessey 6-wheeler the 600 hp VelociRaptor 6×6 . With a nameplate like Mammoth one would expect a rather large vehicle on offer, and measuring 88 inches wide, 283 inches long and nearly 7 feet tall, this doesn’t disappoint. The extra axle at the rear certainly makes this a long truck, increasing the length of the tray offering plenty of room to haul all kinds of stuff.
The 6.2L supercharged Hellcat V8 remains in place from the Ram TRX, with Hennessey adding a larger supercharger, upgraded spark plugs, high-flow fuel injectors, a crankcase ventilation system and software upgrades. The result is a rise in power output from 702 hp to 1,012 hp, with peak torque improving from 650 lb-ft to a massive 969 lb-ft.
