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GM 6.2L EcoTec V8 rated at 21 mpg by the EPA

General Motors is already laying claim to best-in-class power for its new 6.2-liter V8 that will be offered in the 2014 Chevy Silverado and GMC Sierra this fall, and now it has released fuel economy numbers for the big engine. Available as an option on the Silverado LTZ and High Country (shown above) models as well as the the Sierra SLT and Denali trims, the 6.2L EcoTec3 V8 will return 15 miles per gallon in the city and 21 mpg on the highway on rear-wheel-drive trucks; these numbers drop by one mpg each on four-wheel-drive models.
These estimates are in addition to the engine's 420 horsepower, 460 pound-feet of torque and max trailering capacity of 12,000 pounds, and considering all that power it's not terribly far away from the fuel economy of GM's equally new 4.3-liter V6 and its rating of 18 mpg city and 24 mpg highway. This announcement comes just days after a report indicated that GM is unable to keep up with the demand of the 5.3-liter V8 in the fullsize Chevy and GMC trucks due to supplier issues. GM's official press release for the 6.2-liter V8's fuel economy is posted below.

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.

Best midsize trucks for 2024

Pickup trucks are hugely popular in the United States, but most of them carry huge dimensions and huge price tags to match. That's where the rapidly expanding midsize truck market comes into play. With options from nearly every major manufacturer in America, there are plenty of midsize trucks to consider, but the best midsize pickup trucks are more comfortable, more capable off-road or more luxurious than the rest of the crowd. Put simply, there's an excellent midsize truck for every buyer, whether they want to save money with a low starting price and strong efficiency, tackle technical trails, surround themselves with leather and wood or even hit the road with the wind in their hair on their way to the beach. We've tested all of the midsize trucks in America available for 2024 and picked out the best choices for any type of buyer. Read on to find out which option is the best midsize truck for you for 2024 or 2025 (expect more versions of the Toyota Tacoma and Jeep Gladiator in 2025, too). If you're needs don't require a midsize truck, you may want to consider a compact. There are only two for sale in 2024, and we break down our rankings here.   Best midsize trucks for 2024 2024 Chevrolet Colorado  Why it stands out: Good ride, handling; powerful engines; strong towing; refined interior; Google infotainment Could be better: Only one cab/bed combination (four door, short bed) Starting Price: $31,095 Read our most recent Chevrolet Colorado review Suffice it to say, we're big fans of the latest Chevy Colorado. In fact, we think the Colorado is the best midsize pickup truck in America overall. Thanks to the base WT offering, the starting price is reasonable, but the Colorado is really at its best in one of its more specialized forms. The Trail Boss expands its off-road capabilities with a suspension lift and chunky tires, the ZR2 adds an even larger suspension lift and a gaggle of off-road special bits and the ZR2 Bison tops the range with sensational Multimatic DSSV spool-valve dampers, special bumpers and underbody cladding for rock-crawling prowess. In between those specialist packages lie the LT and Z71 trims, which is what will make up the majority of sales. A low-power turbocharged 2.7-liter four-cylinder making 237 horsepower and 259 pound-feet of torque is standard, while the more common engine is a more powerful version with 310 HP and 390 lb-ft. A High-Output engine option keeps the same 310 HP but boosts torque to 430 lb-ft.