Published: Last Updated:
Readtime: 3 min
Every product is carefully selected by our editors and experts. If you buy from a link, we may earn a commission. Learn more. For more information on how we test products, click here.
They say Everything is bigger in Texas, and Hennessey’s Mammoth 6×6 lives up to the expression. Based out of the Lone Star State, the hypercar manufacturer has built its biggest and most exclusive six-wheel-drive truck, combining an imposing frame with incredible performance.
You’ll also love:
Hennessey is Building a Monster 405HP Ford Bronco VelociRaptor
At almost seven feet high, 88 inches (224cm) wide and 283 inches (719 cm) long, the 6×6 pickup dwarfs ordinary cars and trucks. Matching its size with strength, Hennessey’s engineers have boosted the power of the stock Dodge Ram TRX engine by more than 300 horsepower to 1,012 bhp. As you’d expect with a vehicle of this size, the torque has also been enhanced by 433 Nm, totalling (1,314 Nm).
In addition to the performance upgrades, the truck is equipped with a bunch of off-road kit, including a locking rear axle and Bilstein suspension, to 20-inch wheels clad in 37-inch off-road tires. The 6×6 Mammoth builds on the base Ram TRX adding a third axle, extending the truck’s length by more than four feet and creating ample load space.
John Hennessey, company founder and CEO, said: “Everything we do at Hennessey Performance is turned up to 11, but the Mammoth 1000 6×6 is definitely turned up to 12! Everything on the Mammoth 6×6 is bigger, badder, and more imposing – plus, it’s still super-fast, while being a total powerhouse off-road. It’s the undisputed king of the road.”
Adding to its exclusivity, the four-door Mammoth 6×6 features uprated front and rear bumpers and several LED lights alongside a bespoke interior. Under the shoulder-height hood, the truck boasts a 6.2-litre Hellcat V8 engine, with the Hennessey team adding a high-flow 2.65L supercharger, fuel injectors, high-flow induction system and performance-boosting calibration.
Priced from US$449,950 (AU$705,000) –inclusive of the base Ram TRX – the Mammoth benefits from comprehensive 2-year / 24,000-mile cover. Available for global shipping, the new Hennessey Mammoth 1000 6×6 TRX can be ordered now through authorized Ram retailers, directly with Hennessey, by calling +1 979.885.1300 or visiting HennesseyPerformance.com.
You’ll also love:
Hennessey is Building a Monster 405HP Ford Bronco VelociRaptor
850bhp Hennessy Ford Mustang Dark Horse Emerges from the Shadows
