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2023 GMC Sierra AT4X new AEV Edition's spirit animal is the Bison

GMC's newly redesigned 2023 Sierra is getting some equipment that might sound familiar to fans of the Chevrolet Colorado ZR2 formula that inspired it. Don't call it a "Bison," but the new Sierra AT4X AEV (American Expedition Vehicles) Edition sounds an awful lot like everybody's favorite bovine-themed midsize off-road pickup, and GMC says it will be its most off-road capable factory Sierra 1500 ever. If you're not familiar with the AT4X formula, it's already pretty robust. The GMC twin to the new Silverado ZR2 boasts Multimatic DSSV spool-valve dampers, improved ground clearance and approach/departure/breakover angles compared to the "standard" AT4, plus front and rear electronic locking differentials. The AEV Edition looks to the margins for additional improvement.  "The Sierra 1500 AT4X is an incredibly formidable platform when it comes to on- and off-road performance and capability,” said AEV CEO & founder Dave Harriton. “We took our signature approach to help elevate this truckÂ’s inherent off-road capability to the next level. We are confident customers will love the result." The standard AT4X already offers plenty of ground clearance (10.8 inches) and an approach angle of 25.5 degrees, departure angle of 23 degrees and breakover angle of 22.7 degrees. The AEV Edition bumps the ground clearance to 11.2 inches and its AEV-sourced stamped steel bumpers improve the approach angle to 32.5 degrees, departure angle to 23.4 degrees (compared to 23 degrees) and the breakover angle improves to 23 degrees.  "Our customers want an uncompromising combination of on-road technology and off-road capability," GMC boss Duncan Aldred said in the company's announcement. "Leveraging GMCÂ’s unwavering dedication to providing premium trucks and AEVÂ’s expertise in engineering and integrating performance-driven parts and accessories, this truck provides extreme capability, technology and comfort." The AEV Edition will ride on 33" mud-terrain tires wrapped around unique 18-inch AEV "Salta" wheels finished in gloss black. The front end was restyled to accommodate the AEV Edition's wheel and tire package (it was too big for the existing wheel wells, apparently) and front bumper.

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!"

Man on meth steals truck (and goat) from adult video store, police say

A man who was allegedly high on methamphetamine carjacked a pickup truck with a sleeping passenger inside it and a goat in the bed, pistol-whipped the passenger and then led police on a low-speed chase before finally being caught on foot and arrested, police say. It began early on New Year’s Day outside an adult video store in Carthage, Missouri, which is near Joplin in the stateÂ’s southwestern corner. Reports say Brandon Wayne Kirby, a 40-year-old from Mannford, Oklahoma, stole the truck after the driver had gone inside the store but while the passenger was sleeping. When the passenger woke up, he saw a masked man driving and pointing a gun at his head. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Police say Kirby drove the GMC Sierra Heavy Duty Duramax diesel through parts of Missouri, Kansas and into Oklahoma, holding the passenger against his will. At some point, the passenger told police, Kirby ingested meth, pistol-whipped him and continued to threaten him with the gun. The passenger said Kirby eventually let him and his pet goat out on the side of the road in a rural area, which is when he was able to call 911. Police then called OnStar, which tracked down the stolen Sierra HD and slowed it down to around 15 mph. Police eventually used stop sticks to flatten the truckÂ’s tires in the city of Sand Springs and later had to nudge the truck into a ditch to end the low-speed vehicle chase. But Kirby at that point got out of the truck and fled on foot through the woods, dropping his mask and gun, which were both later recovered by police. Kirby was jailed and had charges listed as kidnapping, pointing a firearm and being a felon in possession of a firearm. HeÂ’s reportedly wanted in another county in Oklahoma for burglary and has multiple felony convictions for assault, burglary and possession of a stolen vehicle, according to KTUL-TV in Tulsa. The passenger and goat were transported back to the Creek County SheriffÂ’s Office. The Sand Springs Police Department said on Facebook: “OK 2020, it only took you 4.5 hours to get weird. Let's slow down on the carjacking-goatnapping calls for the remainder of the year.” Related Video: