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2019 GMC Sierra carbon fiber bed: How it's made

FORT WAYNE, Ind. — The redesigned 2019 GMC Sierra has some pretty nifty features, and the one that has had the most attention is the MultiPro flipping and folding tailgate. But the Sierra also features the first-of-its-kind carbon fiber truck bed. It's interesting, of course, for its capabilities, such as being 62 pounds lighter than the all-steel box. It even adds more cargo volume since the material can be assembled and shaped differently from steel. As it turns out, the assembly process is cool, too, which we learned when GMC invited us to see the beds being made. Every GMC carbon fiber bed starts out as perfectly flat sheets of thermoplastic carbon fiber. The sheets consist of a mix of fibers and resins, a bit like the molded carbon fiber parts Lamborghini uses. The sheets are manufactured by Japanese company Teijin, which collaborated with GMC to develop the bed. They're all delivered to Continental Structural Plastics (CSP) in Fort Wayne, Ind., for construction into the actual bed. The company, a subsidiary of Teijin, makes a wide variety of composite and plastic parts for the car industry, including body panels for the C7 Chevy Corvette. The rectangular sheets are cut to shape and stacked up at a giant stamping press. Robots pick up sheets and slide them onto a conveyor that goes into a large oven. The heat softens the parts so they can be stamped. The large primary bed parts such as the base are stamped by CSP's enormous 3,600-ton press, and the smaller ones go through a 1,000-ton press. Each press can do different parts using different stamping dies, and CSP switches between dies to produce different batches of parts. After stamping, the parts roll out mostly ready for assembly, but there are rough edges that are trimmed off by water-jet cutters. These cutting machines also create holes for fasteners and for parts such as tie-down hooks and lights. The stamping process also provides the carbon fiber bed with a unique Easter egg. On the bottom of the base of the bed, there are two words: "Connors Way." This is a tribute to Tim Connors, who was the chief engineer of manufacturing at GM and a strong proponent of the carbon fiber bed. He was tragically killed in a motorcycle crash a few years ago. The words were added to honor him, and they were fortunately approved for production. There are some components to the bed that aren't stamped from the flat sheets of material.

2022 Hummer EV Edition 1 pickups ready to go to customers

It's official: Two years after GM announced the electric GMC Hummer pickup, the first couple dozen units have left the line at the GM Factory Zero Detroit-Hamtramck Assembly Center, according to GM president Mark Reuss. In an interview with CNBC to celebrate the milestone, Reuss said 17 Hummer EVs are ready for delivery to customers. This makes the Hummer the first of GM's new Ultium-based EVs to leave the factory, and the second electric pickup on the market after the Rivian R1T. The first 1,200 Hummer EVs made will be Edition 1 models, all of which are Interstellar White outside with Lunar Horizon interiors and bronze badging. Each of the $112,595 pickups is powered by three Ultium motors producing a GM-estimated 1,000 horsepower and 11,500 pound-feet of torque, loaded with features like height-adjusting adaptive suspension, skid rails and rock sliders, 35-inch tires, the diagonal-driving CrabWalk, the launch control system Watts to Freedom that unlocks a three-second sprint to 60 miles per hour, and Super Cruise. Range is a GM-estimated 329 miles when the 200-kWh battery is fully charged. As these filter out to eager owners, GM is prepping the next four phases of the Hummer rollout. About a year from now, in autumn of 2022, Factory Zero will begin production of the first widely available Hummer, the EV3X pickup that starts at $99,995 before destination. Three Ultium motors will provide an estimated 800 horsepower and 9,500 pound-feet of torque to a range estimated beyond 300 miles. Spring of 2023 is expected to deliver the Hummer EV2X pickup at an MSRP of $89,995, utilizing two motors producing a total 625 hp and 7,400 lb-ft over a range also estimated to go beyond 300 miles. Around the same time, the first units of the $105,595 Hummer SUV Edition 1 are planned to head down lines at Factory Zero. Finally, in the spring of 2024, the entry-level $79,995 Hummer EV2 pickup and its two-motor powertrain should arrive, making the same output as the EV2X, but only good for a range of around 250 miles. That won't be all we see from Factory Zero, either. GM invested $2.2 billion in the Detroit-Hamtramck plant that once built bread-and-butter GM fare like the Chevrolet Impala, Buick LaCrosse, and Oldsmobile Toronado in order to turn the facility into its first EV base of manufacturing operations for Ultium products. The battery-electric Chevrolet Silverado and GMC Sierra pickups will be built there, as will the Cruise Origin robotaxi.

2015 Chevy Tahoe, Suburban and GMC Yukon unveiled

General Motors has today unveiled its new family of fullsize SUVs, including the 2015 Chevy Tahoe, its longer Suburban sibling, and their GMC Yukon, Yukon XL and Yukon Denali cousins. More efficient powertrains, improved aerodynamics, increased connectivity and better overall refinement are what Chevy and GMC say will separate their new SUVs from the current generation.
Sporting a tried-and-true body-on-frame architecture, these full-size SUVs feature platforms that are stronger and offer a wider rear track for "a more planted stance," according to Chevy and GMC. Mounted at the front of each SUV is an EcoTec3 powertrain, which consists of a standard 355-horsepower, 5.3-liter V8 (or a 420-hp, 6.2-liter V8 for the GMC Yukon Denali alone) with direct injection, cylinder deactivation and continuously variable valve timing, that's paired with a Hydra-Matic 6L80 six-speed automatic transmission. The setup is said to be more efficient than before, though official EPA fuel economies for each vehicle are not yet available. To help the powertrain achieve the best possible fuel economy in these 5,000+ pound SUVs, the new styling was developed with aerodynamics in mind. For the same reason, electric power steering also makes its debut in the Tahoe/Suburban/Yukon family.
The front fascias of the Chevy Suburban/Tahoe and GMC Yukon are distinct, but from the base of the A-pillars back, they share most of the same styling cues. This now includes inlaid doors that tuck into the door sills, instead of over them, which improves aerodynamics and fuel economy, and lessens interior noise. The hoods and liftgate panels now are made of aluminum in an effort to reduce vehicle weight. Chevy and GMC also tout that the Tahoe/Suburban and Yukon don't share a single piece of sheetmetal or lighting element with the brands' full-size pick-up trucks.