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Next GMC Sierra Denali accidentally leaked on consumer site

Thanks to the quick-to-screen-shot folks at GM Authority, we now have our first look at what is likely the 2014-15 GMC Sierra Denali. GMA reports that the image you see here was temporarily posted on the GMC consumer site, though as you can see now, when you scroll over the "trucks" tab, the image has been removed.
GM Authority states that because the truck in this image wears a blacked-out lower bumper, redesigned grille insert and shiny wheels, this has got to be the upmarket Denali version of the fully redesigned 2014 model year Sierra. The Chevrolet Silverado will be getting a similar treatment, as we've seen in recent spy shots, dubbed the High Country.
Expect the Sierra Denali to ride on large, unique wheels (the one we spied earlier this year was fitted with 21-inch rollers), and feature a huge helping of luxurious interior amenities, as well as premium features like xenon headlamps. An official on-sale date for the Denali has not been released, though it's been reported that the high-grade Sierra, along with its Silverado counterpart, will arrive after the Texas State Fair this summer.

2019 GMC Sierra shows off new headlights in Los Angeles

Despite being just three weeks in to 2018, it's not too early to dub this the year of the truck. At last week's Detroit Auto Show, we saw the debuts of the 2019 Chevy Silverado, 2019 Ram 1500 and the return of the 2019 Ford Ranger. As with every new Silverado, a sister vehicle follows from GMC. Just take a look at these new spy shots of the 2019 GMC Sierra 1500. These photos were taken out in Los Angeles, presumably for some warm weather testing outside of Michigan. At the Silverado's debut, GM VP Mark Reuss said there would be a significant difference between the Silverado and Sierra with this new generation. The grille on the Sierra appears to be far more upright and rectangular, contrasting the rounded look of the new Silverado. The headlights are larger and more upright. The same goes for the foglights. The profile and rear look fairly similar, though the fenders on the Sierra are more squared off. While we don't know what will rest under the Sierra's hood, expect it to share powertrains with the Silverado. That would mean updated versions of the 5.3-liter V8 and 6.2-liter V8 would be joined by 3.0-liter inline-six diesel. Look for the new Sierra as soon as the Chicago Auto Show next month. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Featured Gallery 2019 GMC Sierra spy shots Image Credit: Brian Williams Design/Style Spy Photos GM GMC Truck gmc sierra 1500

GM delays 3.0-liter Duramax diesel in Silverado and Sierra pickups

Stricter testing protocols around the world are making it harder for automakers to predict launch timelines. GM is the latest to get caught in emissions nettles, the Detroit carmaker forced to delay the launch of its new Duramax 3.0-liter inline-six diesel for the Chevrolet Silverado 1500 and GMC Sierra 1500. That's what company reps told dealers in a memo seen by Automotive News this week. Dealers and buyers had been promised the Flint, Mich.-built oil-burner in early 2019, but AN wrote that the EPA certification hiccup has turned into a "slight delay." A GM spokesman told Motor1, "[We] did not attribute [the delay] to a single entity, as the truth is this is a collaborative effort between GM and several government entities. We will make the 2020MY Duramax available for dealers orders soon, and expect to deliver the first trucks to customers soon after emissions testing is complete." We know the new 3.0-liter Duramax diesel has 277 horsepower and 460 pound-feet of torque, outdoing Ford's 3.0-liter PowerStroke diesel by 27 hp and 20 lb-ft. But without final EPA paperwork, GM can't release the numbers that will show how the two engines stack up when considering fuel economy and tow ratings. The certification process has been sticky for a few other makers of late, especially since the Volkswagen Group situation in 2015. BMW had to delay the launch of four diesel models in 2016 over EPA testing. The new Ram 1500 dribbled out in a trickle last year for reasons thought to deal with EPA testing, coming as it did a year after the EPA investigated Ram's EcoDiesel engines in 2017 and 2018. More recently, WLTP testing in Europe caught out just about every automaker over there. Since we're almost halfway through 2019, the delay until the 2020 model year is only a few months. Still, GM told dealers to cancel any orders for the engine for this model year. Dealers will need to resubmit the orders once opening begins, but GM hasn't said when production will begin other than "soon." The company said that it will offer 2020-model-year replacement vehicles to customers and dealers. If prices hold into the next model year, the 2020 Silverado 1500 and Sierra 1500 with the inline-six diesel will come at a $3,890 premium over the 2.7-liter turbo four-cylinder, and a $2,495 premium over the 5.3-liter V8.