Hennessey Turns GMC’s Sierra AT4 Into A 700-HP Answer To The Raptor
Texas tuner Hennessey has unleashed its latest beast—a supercharged GMC Sierra AT4 packing 700 horsepower, dubbed the Goliath 700 package. The move comes as GMC itself skipped the high-performance off-road pickup battle, leaving the door wide open for aftermarket specialists to … Read more