2009 Gmc Sierra 1500 Slt Crew Cab Z71 4wd 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 will stop reporting monthly U.S. vehicle sales

DETROIT — General Motors said on Tuesday it will stop reporting monthly U.S. vehicle sales, saying the 30-day snapshot does not accurately reflect the market, and will instead issue quarterly sales. GM will also no longer report monthly sales in China, its largest market, and Brazil. GM will provide monthly data to the U.S. Federal Reserve, industry associations and government agencies across the globe, but that data is not made public. Analysts and investors rely on monthly U.S. vehicle sales not just to track the performance of individual automakers, but as a barometer of the health of the world's second-largest auto market and as an indicator of consumer confidence in the U.S. economy overall. GM and its Detroit rivals Ford and Fiat Chrysler have relied heavily on sales of high-margin pickup truck and SUV sales to boost profits. GM's total U.S. sales, its second-largest market, are down 3.2 percent for the first two months of 2018, reflecting a 6.8 percent drop in retail sales to individual customers, the company reported last month. GM executives have expressed frustration that comparisons of monthly U.S. sales results among rival automakers are distorted by short-term discount programs, and by differences in strategy for selling vehicles in bulk to rental car fleets. "Thirty days is not enough time to separate real sales trends from short-term fluctuations in a very dynamic, highly competitive market," Kurt McNeil, U.S. vice president for sales operations said in a statement. GM's actions could prompt other automakers to also switch to quarterly U.S. sales reports. Major automakers will report March U.S. new vehicle sales on Tuesday. Until the early 1990s, most U.S. automakers released sales results every 10 days. The former Chrysler Corp. stopped reporting sales on a 10-day basis in 1990, and rivals followed suit over the next three years. GM executives are betting that investors will quickly adapt to receiving U.S. sales data every three months, as investors in other retail sectors already have. Retailers such as Walmart report sales on a quarterly basis. Reporting by Joe WhiteRelated Video: Image Credit: Reuters Earnings/Financials Green Buick Cadillac Chevrolet GM GMC US

GM Design shows another early Hummer EV sketch

Like a new mother who's still so excited about her one-year-old baby that she can't stop showing ultrasound photos, General Motors is so excited about its biggest new baby, the battery-electric GMC Hummer, that it can't stop showing off development design sketches. The off-road monster with the 200-kWh Ultium battery pack debuted online on October 21 last year. The next day, the GM Design Instagram page posted some of the Hummer's early "theme sketches" leading to the production version. These had a conceptual flair to them, but were rather restrained. A month later, GM uncovered a series of development renderings showing off a much wilder truck bursting with more angles than a geometry text book. The archives have opened up again with a new "ideation sketch," this one between the first believable sketches and the second truck that Master Chief and Doomguy share on their days off.  All three sets of drawings show similar three-box proportions, it's the details that got a ton of love. On this newest sketch, the fenders flare a touch more than on the production truck, but the wheel wells are cut with the kind of clearance found on a Baja 1000 Trophy Truck. Out back, save for the tow hooks, the rear end is totally different than production. The sketch puts illuminated Hummer script across a narrow tailgate flanked by small square, taillights housing six individual elements. Beneath that, a bumper-less rear end puts nothing more than a sloped bash pate between the truck and the rocks it's just scrambled over. To our eyes, this is the best blend of production-ready comfort from the first sketches and zoot suit angles from the second that we've seen so far.  First deliveries of the GMC Hummer EV Edition 1 are expected before the year is out. When we get a chance to absorb the truck in its native habitats, we'll know whether there's cause for disappointment at what could have been. If so, with all this hunger among the monied for something different, we feel like restomodders have been given the perfect head starts on custom rebodied Hummers that would make things right. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.