We showed you the details of Reed Fullmer's '07 GMC Sierra, and we're sure you agree it's a nice truck. If you were wondering how they made more than 375 hp to the rear wheels and still received 15 ...

Customers with a need for speed and a refreshed 2022 Chevy Silverado 1500 or 2022 GMC Sierra 1500 in the driveway can satisfy that go-fast itch with the new SC520 Package upgrade from Callaway. Based ...

The GMC Sierra EV Denali Max Range is a new breed of GM EVs that eliminates range anxiety. The easy Tesla Supercharger access is icing on the cake. The Denali EV I tested this week showed over 500 ...

Hennessey Performance Engineering has recently launched a supercharged upgrade package for the GMC Sierra 1500 with the 6.2-liter small block. Pictured at the Texas-based tuner's Pennzoil Proving ...

The mainstay of the Hennessey Goliath 700 GMC Sierra Denali is the beefed-up 6.2L powerplant thanks to a Hennessey 2.9L supercharger package, touting a zero-to-60-mph time of 4.3 seconds.

It doesn’t matter if you’re talking about coupes, sedans, SUVs or pickup trucks – horsepower is plentiful these days, with tuners like Hennessey Performance Engineering leading the way with upgrades ...

Lets be real: no one needs a pickup truck with 700 hp. But would people want a pickup truck with 700 hp? Absolutely – and that’s exactly what this 2020 GMC Sierra from Hennessey Performance offers.

GMC offers off-road-ready versions of the Sierra 1500 in the form of the AT4 and AT4X, but if that isn't enough capability, Texas-based PaxPower has an aftermarket solution. The PaxPower Jackal ...

The most powerful GMC Sierra 1500 from the factory today packs a 6.2-liter V8 that makes 420 hp. That isn't what we would call a slow pickup truck. But the folks at Specialty Vehicle Engineer felt ...