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2019 GMC Sierra Denali and its nifty tailgate roll into dealers

We've got more details about the 2019 GMC Sierra Denali now that it's rolling into dealerships, starting with its floor price of $56,195, including destination fee, for the rear-wheel-drive models. That's a jump of $1,900 over the previous generation of its premium full-size pickup. Four-wheel-drive models start at $60,295. The crew-cab truck has grown in every dimension as well, adding about 4 inches to the wheelbase, nearly 2 inches in length and 1.2 inches in width. There's also nearly 3 inches more rear legroom. Bed options are 5-foot-8 or 6-foot-6. There are three engine options. Two are carryovers from 2018: a 5.3-liter V8 that sends 355 horsepower and 383 pound-feet of torque through an eight-speed automatic transmission, and an available 6.2-liter V8 that makes 420 hp and 460 lb-ft of torque and mated to a 10-speed automatic. Both come with GM's dynamic fuel management cylinder-deactivation technology to optimize power and fuel efficiency. A new 3.0-liter turbodiesel paired with a 10-speed automatic is expected in early 2019. The EPA hasn't yet released official fuel economy ratings, but GM estimates them at 17 miles per gallon in the city and 23 mpg on the highway for the two-wheel-drive versions, and 15/21 in four-wheel drive. The truck gets adaptive ride control which can adjust the dampers every 2 milliseconds based on real-time monitoring of the road and driver inputs for improved ride and handling. A new traction select system adjusts the transmission shift points, throttle mapping and StabiliTrak to tailor performance to different terrain or weather conditions. Inside the crew cab, there's new Forge leather-appointed seats, open-pore wood trim and dark finished aluminum decor, plus an 8-inch-diagonal HD color touchscreen with embedded navigation and Apple CarPlay and Android Auto compatibility. Most of the other new stuff we've covered before, including new C-shaped LED headlights and LED tail and fog lamps, optional 22-inch wheels, full-color head-up display, trailer-hitch assist apps and cameras, and rear-camera mirror. The truck also loses up to 360 pounds from the outgoing model via a scratch- and dent-resistant carbon-fiber bed box that replaces steel, and use of aluminum in the doors, hood and tailgate.

2024 GMC Acadia to go big again for third generation

In July, spy shooters caught prototypes of the next-gen GMC Acadia wrapped up tight in camouflage. We couldn't make out any useful aspects but one: The coming third-gen Acadia is larger than the current second-gen. Remember, GMC debuted a smaller Acadia for the 2017 model year, lopping eight inches of length and three inches of width from the first-gen large mid-size SUV to create a smaller mid-size three-row SUV. The new prototypes appeared to show that decision would be reversed, now we have proof thanks to more comments unearthed from GM's recent Investor Day presentations in New York. Caught by GM Authority, automaker president Mark Reuss said, "Alongside the Traverse, we’ll move the GMC Acadia to a little bit different size standpoint. This comes in a little bigger than the old Acadia, so itÂ’s a big transformation for GMC and its part of the market." In a 2016 Automotive News piece about how GMC planned to increase sales volume, AN reported, "One potential avenue: venturing into Jeep's terrain. Industry sources believe GMC is drawing up plans for an SUV based on the same body-on-frame platform that serves as the bones of the GMC Canyon and Chevrolet Colorado midsize pickup. It's in the early stages — it doesn't appear to have been sourced to suppliers yet and the SUV's arrival isn't expected until 2020 or later." The first-gen 2016 GMC Acadia was 200.8 inches long, while a 2016 GMC Canyon Crew Cab with the roughly 5-foot bed was 212.8 inches long. It's thought that truncating the second-gen GMC Acadia to 193.4 inches long and 75.4 inches wide was intended to leave plenty of room for the planned SUV on the Canyon platform. However far that SUV project got, it was reportedly canned in 2018.   Hence an upsized Acadia returns. Reuss' comment about the Chevrolet Traverse could imply what's coming for the GMC, the Chevrolet being 205.9 inches long and 78.6 inches wide. A bigger Acadia could make a better sales proposition against the two-row Terrain, too. The Terrain costs almost $9,000 less than the Acadia and is 182.3 inches long and 72.4 inches wide. It's not clear when GMC plans to show the new Acadia, but the consensus is that it will go on sale for the 2024 model year. Expect an all-new cabin, Super Cruise capability and a front fascia reminiscent of the new Canyon. Powertrain options are a mystery.

Next-gen Chevy Silverado and GMC Sierra may use carbon fiber

It's been generally accepted that the next generation of full-size GM trucks will use some sort of strong, lightweight material for the beds while retaining steel for the cab. While aluminum seems like the most obvious choice, according to Automotive News, the Chevy Silverado and GMC Sierra will incorporate both aluminum and carbon fiber in their beds. The publication cites sources from within GM, though it seems the introduction of this comparatively exotic material mix is still a few years off. While carbon fiber is both stronger and lighter than steel and aluminum, it takes significantly more time and money to produce, essentially relegating the material to small-volume cars. The main benefit for trucks is the resulting reduction in weight to improve fuel economy without sacrificing the tough, rugged capabilities truck buyers expect. The Ford F-150 made the switch to aluminum for the 2015 model year and it's proved highly successful. It seemed like it was only a matter of time before the competition followed suit. Automotive News says that the next-gen trucks will launch with aluminum beds and that it will take a couple of years before we'll see any carbon fiber incorporated into the design. Even then, only look for the composite material on higher-trim models, with a trickle down to lower-spec trucks possible further in the future. In 2011, GM announced it was working with Japan-based Teijin Limited on a carbon fiber reinforced thermoplastic. There's a good chance that material's introduction will be on trucks. Related Video: News Source: Automotive News Plants/Manufacturing Rumormill Chevrolet GM GMC Truck