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GM readying aluminum-body fullsize pickups

Ford's extensive use of aluminum in its 2015 F-150 is a big deal. A really big deal. Big enough, in fact, that General Motors is reportedly changing its fullsize pickup strategy. According to The Wall Street Journal, The General has locked in partnerships with Alcoa Inc. and Novelis Inc. - companies that will supply aluminum for the next-generation Chevrolet Silverado and GMC Sierra trucks.
"Ford's introduction of the 2015 F-150 pickup truck was a game changer, and it's the first, not the last, conversion of this type," Novelis spokesperson Charles Belbin told the Journal. The switch to aluminum has allowed Ford to shave roughly 700 pounds off its fullsize truck's curb weight. And while official mileage ratings have not been announced, the weight loss should go a long way for improving efficiency, especially when combined other efficiency-minded improvements including better aerodynamics and new, turbocharged V6 engines.
Of course, aluminum-bodied cars are nothing new. But extensive use of aluminum in a major, best-selling product like the Ford F-150 is expected to kick off widespread use of this weight-saving material as availability rises and cost decreases. The WSJ reports that GM had originally explored the idea of moving to aluminum pickups back in 2008, but abandoned the idea due to cost concerns amid economic woes.

GMC Hummer EV's taillights cost thousands to replace

The GMC Hummer EV pickup hasn’t stopped raising eyebrows since GM pulled back the curtain on the behemoth in Spring 2021. ItÂ’s huge, not all that efficient, and unbelievably expensive, but now weÂ’re learning how much replacement parts cost for the new EV. The Drive dug up a post from the Hummer EV Facebook page that claimed a taillight replacement for the vehicle costs thousands to replace. General Motors confirmed pricing to the publication, quoting a one-side replacement cost of $3,045.48. That adds up to more than $6,000 to replace both, so we hope your insurance is solid if you own one. Why would a taillight housing cost that much? Part of the cost comes from the fact that GM couldnÂ’t parts-share its way through the design of a $100,000 flagship electric SUV, but most of the price comes from the complexity of the lights. The Hummer offers elaborate lighting sequences that require microchips and other components, all of which cost money. ThereÂ’s also the fact that the Hummer EV is too new for General Motors to take advantage of its usual economies of scale in mass-produced vehicles. General Motors recalled the Hummer EV earlier this year for issues with the taillights. Though the problem was software-related, GM had to replace the entire light units because the software controlling them was actually embedded in the lights. ItÂ’s true that there are very few vehicles that are tall and large enough to impact the HummerÂ’s taillights, but we hope the owners of those vehicles never have to file an insurance claim to replace one. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

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!"