2008 Gmc Sierra 1500 Extended Cab Sle 5.3l 4x4 Z71 6 1/2' Bed on 2040-cars

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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.

GMC rules out subcompact crossover to go premium, focus on trucks

Don't wait for GMC's on-again, off-again baby crossover any longer. The company confirmed it has no plans to enter the growing car-based subcompact crossover segment in the near future because the expansion wouldn't fit its image. "I'm going to give you a definitive no on that one," answered Mark Alger, a regional marketing manager for GMC's Canadian division, when asked about the entry-level segment by GM Authority. "We want to position GMC as a premium brand, focus on our trucks, and capitalize on the AT4 name," he added. Positioning GMC as a premium brand wouldn't prevent officials from giving an entry-level the green light; Audi, BMW, and Mercedes-Benz all sell cars priced in the vicinity of $30,000. Focusing on trucks like the Sierra and the Canyon makes sense, however, because they compete in a bigger segment of the market where profit margins are much wider. It helps that GMC doesn't have to worry about markets outside of North America; it's not concerned about its sales and image in, say, Spain. We've heard speculation about GMC's entry-level model since the Granite concept (pictured above) made its debut during the 2010 Detroit auto show. It was approved for production in 2010, approved again the following year (complete with rear suicide doors), and canceled in 2012, but the reports never went away. The segment's popularity added credibility to the recent murmurs describing a born-again Granite aimed at the Honda HR-V and the Toyota C-HR, among others. The Chevy Trax and Buick Encore are both GM vehicles that compete in this segment.  GMC also canceled a body-on-frame, Bronco-taming SUV, according to a recent report. The truck-focused automaker promised every nameplate in its range will receive the rugged AT4 treatment by 2021, however, and it announced plans to show the off-road-ready Canyon in early 2020.

GM able to add diesel to half-ton pickups if market demands it

A few years ago, the trend in half-ton pickup trucks was ultra-luxurious trims, often with the words "limited" or "platinum" tacked on after the model name. That was well and good, but we like this latest fad a lot more - diesel engines. First, Ram came to bat with a 3.0-liter, V6 turbodiesel for the 1500, then Nissan announced that the next-generation Titan would be getting an eight-cylinder Cummins diesel.
Now, word is coming in from AutoGuide that General Motors can, if it so chooses, drop a diesel engine into its light-duty trucks. The plot thickens, though, as it turns out that said diesel would be the same one Ram is using for its truck. According to AG, that engine comes from VM Motori, which GM owns a sizable chunk of. Therefore, GM can snag the 3.0-liter, V6 diesel for its trucks just as easily, if not more easily, than Ram.
If it's so easy for the Detroit-based manufacturer to access the engines, why not offer the a diesel-powered Sierra and Silverado from the start, then? According to GM spokesman Tom Wilkinson, The General doesn't seem so confident in a diesel pickup outside of its HD offerings. According to Wilkinson, the cost-benefit ratio doesn't line up for customers, thanks to both the impact on the truck's sticker price and the higher price of diesel, in general (the national average for a gallon of diesel is 43 cents more than a gallon of 87-octane unleaded).