Right out of the box, the GMC Sierra 1500 is a very solid truck, but if you’ve got a speed itch, the stock pickup may prove lacking. Enter Hennessey Performance Engineering, which offers a wide ...

Hennessey is no stranger to taking some of America’s most popular pickup trucks and significantly increasing their performance. For its latest project, it developed a package for both the Chevrolet ...

In this episode, the Hennessey Performance lads thought they'd race their latest upgraded Chevy Tahoe against a stock GMC Yukon for kicks. The Hennessey Performance crew's body of work is wildly ...

If the Cadillac Escalade-V seems too expensive for a truck-based sport utility vehicle worthy of being called sporty, fret not. Hennessey Performance Engineering charges $27,950 to upgrade the ...

Thomas has spent two years working in the auto journalism industry, contributing to a UK-based newspaper and writing for Euronewsweek. A full-time writer and lifelong engineering enthusiast, he now ...

To many people, a powerful and capable truck is what springs to mind when they think of GMC's lineup. However, while this manufacturer has plenty of high performance vehicles designed for heavy-duty ...