The Hennessey GOLIATH 700 GMC Sierra AT4 blends premium refinement with serious off-road performance, creating a truck engineered for drivers who want luxury without sacrificing capability.

Built around GMC’s upscale AT4 platform, the GOLIATH 700 upgrade adds a high-performance supercharger system to the 6.2L V8, delivering 700 horsepower along with stronger acceleration, sharper throttle response, and unmistakable Hennessey attitude.

In this video, we take a closer look at what separates the GOLIATH 700 AT4 from everything else on the road—from its aggressive stance and off-road capability to the elevated interior and commanding presence that define the Sierra platform. The result is a truck equally comfortable pulling up to a high-end resort, crossing rough terrain, or stretching its legs on an open Texas highway.

Like every Hennessey build, the GOLIATH 700 is engineered to deliver real-world performance with factory-level drivability and durability. It’s luxury off-road performance without compromise—built for customers who expect more from their truck in every environment.

The Hennessey Demon 1700 Twin Turbo is one of the most extreme American muscle builds we’ve ever created—and in this video, we take it out for a full test drive. Powered by a fully reengineered 7.2L twin-turbo HEMI V8, this machine delivers brutal acceleration, relentless boost, and the kind of raw power that completely changes the driving experience behind the wheel. Built with a comprehensive twin-turbo system featuring Precision turbochargers, upgraded fueling, reinforced drivetrain components, and advanced calibration, the Demon 1700 is engineered to handle massive power at every level. On the dyno, the car produced an astonishing 1,355 rear-wheel horsepower and 1,202 lb-ft of torque at 23 psi, putting it in a category few street-driven vehicles can touch. From the sound of the turbos spooling to the violent pull under throttle, this test drive showcases exactly what happens when Hennessey pushes modern American muscle beyond the limit. Limited to just 12 builds worldwide, the Demon 1700 represents a no-compromise approach to horsepower, engineering, and straight-line performance.

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Explore the full Hennessey Ford lineup in one place. In this video, we walk through every current Ford-based Hennessey build—from off-road trucks and SUVs to supercharged street machines—breaking down what each vehicle is, what makes it unique, and how our upgrades transform the factory platform into something far more capable.

Featured vehicles include the VelociRaptor 500 Bronco Raptor, VelociRaptor 600, VelociRaptor 1000 Raptor R, Venom 800 Off-Road, Venom 800 Sport Truck, Super Venom Mustang, and the all-new VelociRaptor 1200 F-250. Throughout the video, we cover the core elements behind each package, including supercharger systems, suspension upgrades, aerodynamic enhancements, carbon fiber components, wheel and tire setups, bespoke interiors, and the engineering philosophy that defines every Hennessey build.

Whether you’re interested in extreme off-road capability, street-focused performance, or limited-production specialty vehicles, this lineup showcases the full spectrum of modern Hennessey Ford performance—built in Texas and engineered without compromise.

For aspiring performance enthusiasts, the journey from passion to profession often starts with curiosity and very little hands-on experience. That was the case for Nathan Walker from Midland, Texas, who enrolled at Tuner School after studying mechanical engineering with a focus on high-performance vehicles.

In his words, he came into the program admitting, “I don’t know anything,” but quickly discovered an environment built around real-world learning and direct access to industry professionals. From classroom instruction to stepping just a few feet away to work on actual vehicles, Nathan described the experience as uniquely immersive and unlike any other automotive training program he researched.

Throughout the program, Nathan gained experience working with advanced tuning platforms like HP Tuners, Holley, and Haltech while participating in hands-on builds including a Mustang project and a turbocharged truck. More importantly, he developed the confidence to tune vehicles on his own — something he admits he couldn’t imagine doing just six months earlier. He credits the instructors and Hennessey’s industry experts for creating an atmosphere where students can ask in-depth technical questions and receive real-world answers from experienced calibrators and engineers. Nathan’s story is proof that with dedication and the right mentorship, even students with limited experience can build the skills needed to launch a career in high-performance automotive engineering.

Hennessey Racing is ready for the grid. In this video, we reveal the official Ford Mustang Dark Horse R livery for our entry into the Mustang Cup—an unapologetic, in-your-face design inspired by American performance and Texas roots. Draped in bold red, white, and blue, this race-ready Mustang reflects the same attitude we bring to everything we build: aggressive, purposeful, and built to stand out. It’s more than just a look—it’s a statement of where we come from and how we race. Take a closer look at the details and get ready to see this Dark Horse R in action this season.

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Join us as we go over the features of our GOLIATH 700 performance package for the Chevy Silverado ZR2.