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Torque time | 2017 GMC Sierra HD First Drive

It's not the truck that counts, it's how you use it. It's the heavy stuff you fit in its bed or the extremely heavy stuff that gets hooked up to the tow hitch. The ATV, the Jet Skis, the trailer with more square footage than a Greenwich Village apartment. Perhaps you need to get Seabiscuit or, uh, Mr. Ed to wherever they need to gallop next. In our case, there's a pair of very serious-looking snowmobiles perched atop the bed of a GMC Sierra. They spread out as wide as the extended tow mirrors, and their back halves are dangling precariously beyond the truck. Sterling Archer would be giddy; I'm a little nervous. But only because canyon roads and wide vehicles with a high center of gravity go together like peas and custard. The added weight is no sweat at all. That's because this is the 2017 GMC Sierra HD Denali, a truck with the sort of enhanced power, torque, suspension, and stopping capability expected of a heavy-duty pickup. And for this year, the power and torque get a serious bump courtesy of a new 6.6-liter Duramax turbodiesel engine reengineered from almost the ground up with 90 percent new parts. It's quieter and more efficient and it emits less, while most importantly producing 445 horsepower and 910 pound-feet of torque. That's up from 397 and 765, respectively. Chevy fans will note that the same engine is also available in the updated 2017 Silverado HD. Now, for those keeping score at home, that horsepower is best-in-class but the torque number still falls short of the new Ford Super Duty and its Power Stroke diesel V8's 925 lb-ft. Aw shucks. For the record, GM's engineers didn't seem too concerned that they weren't able to eke out an extra 16 torques just to say they're No. 1. "We wanted to first meet emissions and then deliver the maximum horsepower and torque we could, and deliver it over the widest usability range possible," said chief engineer Eric Stanczak. And let's be honest here, 910 pound-feet is herculean, and once again, a jump of 145 lb-ft. Or one Subaru Impreza's worth. Or 110 more than the best Ram can do on a 2500, and its Cummins turbodiesel's 800 pound-feet was eye-popping not too long ago. (The Ram 3500 maxes out at 900 lb-ft with the right transmission.) Ah, but here's the rub. That Cummins-equipped Ram 2500 can still tow more weight according to SAE-compliant measurements – 17,510 pounds for a Ram crew cab with a short bed versus 13,000 in the similar Sierra 2500. The Ford F-250 can manage 15,000.

Junkyard Gem: 1973 GMC Sierra Grande Camper Special

Starting in the 1973 model year, General Motors introduced the "Rounded Line" family of C/K-series Chevrolet and GMC trucks, and sales of the pickup versions continued all the way through 1987. Nice examples of these trucks can sell for large money, but the junkyard teaches us that not all collectible vehicles are worth rescuing and fixing up. Here's a reinforcement of that lesson, courtesy of a first-year GMC C2500 Camper Special with the high-zoot Sierra Grande trim level, found in a self-service yard just outside of Denver, Colorado. I'm no GM truck expert, but I know enough to stay clear of the battles over what to call this pickup. Let's just say it's a three-quarter-ton, rear-wheel-drive third-gen C-Series with really cool badges. Yes, I bought this badge for my garage wall, and it was totally worth the $4.23. GM came up with the Camper Special package during the late 1960s, when removable pickup campers became popular, and for 1973 it included heavy-duty springs and a wiring harness made to plug into the connectors on slide-in truck campers. It also included woodsy-looking badges, but someone pried the ones off this truck before I could buy them. This may well have been a one-owner truck, because it still had original warranty paperwork inside. Here we see that it was purchased new on August 2, 1973 (which happens to be the day that George Brett got his very first hit in the big leagues) by a resident of Compton, California. Yes, that Compton. The build tag tells us that this Camper Special was born at the Fremont Assembly plant in California, which became the GM-Toyota NUMMI venture in 1984 and is now the Tesla Factory. I think most 1973 C/K pickups sold new in Colorado would have come from Pontiac Assembly in Michigan. There was a time, not many years ago, when a genuine 454-cubic-inch (that's 7.4 liters to those of you sweating under the oppressive weight of the French Empire's Measurement System) big-block Chevrolet engine would have been yanked out and purchased within hours of hitting the rows of a yard like this. These days, engine-swappers can get more power with less weight from any number of donor vehicles. If this engine is the original 454, it was rated at 240 horsepower and 355 pound-feet (down from 270 hp in 1972 due to emissions-related changes). This truck had a three-speed automatic transmission, like most optioned-up Detroit pickups of its era.

Watch the 2022 GMC Hummer EV launch using its Watts to Freedom mode

It’s nearly the July Fourth weekend, and GM is celebrating Independence Day a little earlier than most. The celebration comes in the form of a GMC Hummer EV demonstrating Watts to Freedom, or WTF, mode for us on video. You can watch it at the top of this post, but the idea is rather simple. ItÂ’s just a video of a Hummer development vehicle accelerating as quickly as it can from 0-60 mph and beyond. GMC claims its 1,000-horsepower electric Hummer is capable of hitting the 0-60 mph mark in “approximately 3 seconds,” which is borderline terrifying for how large of a vehicle it is. The super-quick time is possible when using the Watts to Freedom launch control mode, which “channels the propulsion systemÂ’s tremendous power into acceleration bursts.” The truck will still be plenty fast when accelerating normally, but WTF mode is what you should use to unlock its full potential. GMCÂ’s video shows us the graphics it uses in the digital cluster to signal Watts to Freedom is activated, and the whole sequence looks like it leans on U.S. military themes for both design and phrasing. For example, GMC lets you know that Watts to Freedom is ready via an “Armed” message in the cluster.  The 2022 GMC HUMMER EV is a first-of-its kind supertruck develop View 40 Photos Instead of a rumbling exhaust and screeching tires, the Hummer appears to silently launch with all four tires grabbing on and catapulting the truck away. It looks quick as it throws all of the weight rearward into an accelerative squat. And in case you missed it, thatÂ’s a lot of weight — GMC says itÂ’ll tip the scale at 9,046 pounds. GMC has previously said that production will begin in late 2021, and this video continues to confirm that timeframe with a note saying “initial availability Fall 2021.” Do keep in mind that only the sold-out Launch Edition is coming at that time. Other cheaper variants will follow in the years to come. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. GMC Hummer EV reveal