2014 Gmc Sierra 1500 Slt on 2040-cars

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Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"

GM to idle car production at five factories as Americans continue CUV love affair

In case you needed another reminder that Americans have fallen out of love with sedans, General Motors today announced plans to idle five factories in January in a bid to cut its inventory to 70 days. Detroit-Hamtramck Assembly ( Buick LaCrosse, Cadillac CT6, Chevrolet Volt and Impala) and Fairfax Assembly in Kansas ( Chevy Malibu) will stop production for three weeks. Lansing Grand River ( Cadillac ATS and CTS, and Chevy Camaro) is going down for two weeks, while Lordstown, OH ( Chevy Cruze) and Bowling Green, KY ( Chevy Corvette) will go idle for a week each, Automotive News reports. GM's shutdown reflects a broader problem with the company's supply – at 847,000 vehicles, the company's supply increased unsteadily from a low of 629,000 units in January of 2016. That's more than a 25 percent increase in the past year. Citing information from Autodata, The Detroit News reports that at the end of November, GM had a 168-day supply of LaCrosses, 177 days' worth of Camaro, 170 days of Corvette, 121 days for Cruze, 119 days for ATS, 132 days for CTS, and 110 days of CT6. Meanwhile, inventory of the company's more popular vehicles is actually below the professionally accepted 60- to 70-day supply, The News reports. The Trax, Colorado pickup, and GM's full-size SUVs are sitting below 50 days and experiencing year-over-year sales increases. GM needs a rethink of its inventory levels, which is something that's apparently coming. "We're going to be responsible in managing our inventory levels," GM spokesman Jim Cain told The News. Another unnamed spokesman told Automotive News the company's day-to-day supplies would "fluctuate before moderating at year-end." But at least one analyst thinks this won't be the last time Detroit needs to stop production to level things out. "Incentives are elevated, residuals are declining, and rates are rising," Brian Johnson, an analyst with Barclays, told The News. "And while GM in particular may benefit in the months ahead from new product launches, it's important to recognize that GM's inventory is elevated at the moment, and it wouldn't surprise us if they need to announce another production cut – which could pressure the stock." Related Video: News Source: The Detroit News, Automotive News - sub. req.Image Credit: Paul Sancya / AP Plants/Manufacturing Buick Cadillac Chevrolet GM GMC Crossover SUV Sedan bowling green cadillac xt6 fairfax

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.