Unleash the Beast: The Hennessey Mammoth 400 Merges Viper Heritage with HEMI V8 Power

Discover the Hennessey Mammoth 400, a limited-edition performance truck blending Viper-inspired design with HEMI V8 power. Only 250 units available.

July 3, 2024

This Viper-Inspired Ram 1500 Supertruck is Hennessey’s Farewell to the V8 Era

Explore Hennessey's Mammoth 400 Sport Truck — a Viper-inspired supertruck serving as a farewell to the V8-powered Ram 1500.

July 2, 2024

Unveiled: Hennessey's Mammoth 400 - The Ultimate All-American Tribute to the Ram 1500 Laramie

Discover Hennessey's Mammoth 400—a powerful, patriotic tribute to the Ram 1500 Laramie, combining iconic aesthetics with robust performance.

July 2, 2024