What makes it special is that it comes with the Hennessey Performance Goliath 650 Package, which includes a 2.9-liter Whipple supercharger, high-flow intercooler, custom pushrods, a crankcase ventilation system and an HPE engine management calibration. This thing is also rocking a Hennessey steel cat-back exhaust, and it sounds amazing.
You can get this very same package on a Silverado too, resulting in 650 horsepower. It’s definitely an improvement over the stock truck, whether it’s a Chevy or a GMC.
Originally, this 2021 Sierra retailed for $71,760, which includes the $11,965’s worth of options. Let’s run through some of them, starting with the Ultimate Package.
It holds the HD surround vision camera, multicolor head-up display, forward collision alert, lane keep assist, automatic emergency braking, front pedestrian braking, auto high beams, adaptive cruise control, follow distance indicator, a power sunroof and the MultiPro power steps.
Meanwhile, the Denali trim package adds the two-speed transfer case, standard Driver Alert I package, adaptive suspension, the BOSE audio system, power-sliding rear window, digital instrument cluster, heated second-row seats, ventilated front seats and a wireless charging pad.
Other convenience features include the Trailering Package (revised gear ratios, upgraded radiator, revised shocks with heavy-duty springs), carbon fiber composite bed and CarbonPro badging, 22-inch wheels, leather upholstery and Brembo brakes.
In fact, from a visual standpoint, those brakes are pretty much the only thing that might tip you off to this not being a run-of-the-mill Sierra.