2021 Gmc Yukon No Reserve 4x4 6.2l Denali Fully Loaded on 2040-cars

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2017 GMC Acadia coming to Detroit Auto Show

Well, it's about time. If there's one group of vehicles that are in serious need of an update, it's the GM Lambda crossovers. You know, the Chevy Traverse, GMC Acadia, and Buick Enclave. They're super old. Good thing, then, that the brand-new Acadia is coming to the Detroit Auto Show next week, as evidenced by this teaser image found on the company's Facebook page. There's not much to see here, except for an LED taillamp signature on what appears to be a much cleaner rear end. We expect the three-row CUV to feature all of the latest GM tech, including a robust infotainment system with Android Auto and Apple CarPlay. V6 power and optional all-wheel drive makes sense here, too, though we won't rule out some kind of four-cylinder option. When GM launched the Lambda crossovers, the Acadia arrived first in late 2006, alongside the now-discontinued (but still very much present in the current Acadia) Saturn Outlook. The Buick Enclave came next, and the Chevy Traverse arrived after that. It's unclear if GM will stick with this rollout plan, of course, but one thing's for sure: all-new versions of these CUVs cannot come soon enough. Related Video:

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.

GMC Hummer EV will weigh 9,046 pounds

In the 2000s, Hummer's unique breed of off-roaders summoned a dark cloud of disapproval from environmentalists because they were gas-guzzling SUVs with mammoth dimensions. GMC's born-again Hummer EV will escape the gas guzzler label by running solely on electricity, but it will be even bigger and much heavier than its predecessors. Enthusiast site GM-Trucks reported the Hummer EV will tip the scale at 9,046 pounds (4,103 kilos if you're outside of the United States) in its quickest configuration, and a GMC spokesperson told Autoblog that figure is accurate. For context, the H1 Alpha released for 2006 (and often considered the ultimate Hummer) weighed 8,113 pounds, the H2 checked in at 6,614 pounds with the 6.2-liter V8, and the H3 was comparatively light at 4,600 pounds. When it lands, the Hummer EV will be one of the heaviest new cars sold in the United States. Part of its plumpness can be attributed to its colossal dimensions; it measures 216.8 inches long, 86.7 inches wide, and 81.1 inches tall. In comparison, the H1 stretched 185 inches long, 87 inches wide, and about 78 inches tall. The electric powertrain also played a major role in slinging the Hummer's weight into dually pickup territory. Batteries are heavy, and the Hummer EV's Ultium pack reportedly has a capacity of over 200 kilowatt hours. It has three electric motors, too. Note the 9,046-pound figure applies only to the sold-out Launch Edition model, which will offer 1,000 horsepower, the aforementioned 200-kilowatt battery, and the supercar-like ability to hit 60 mph from a stop in three seconds. GMC will launch cheaper, slower, and presumably considerably lighter variants of the truck in the early 2020s. Although SUVs are often heavier than comparable trucks due to the additional sheet metal, the people-hauling Hummer should weigh less than the cargo-carrying variant. As we reported in April 2021, its output will be limited to 830 horsepower because it's 20 inches shorter than the truck, and the bigger battery pack doesn't fit in this footprint.