2008 Yukon Denali Awd-nav-roof-3rd Row Seats-tow Pack-heated Seats-dvd-20s-clean on 2040-cars

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Inevitable GMC Canyon Denali spotted testing

Practically every other model in the GMC lineup already offers a more luxurious Denali option, so why not extend that to the Canyon midsize pickup? It's hardly a surprise to see the brand doing just that, especially since the standard model seems to be proving quite a success. This Canyon was recently spied testing wearing camouflage over its front end. The truck still needs to breathe, though, and the opening in the obfuscation makes it quite easy to spot the Denali's chrome mesh grille, rather than the horizontal slats of the standard model. Also, just peeking out of the bottom part of the masking is the lower air intake, which appears to be completely lined in chrome now. At the sides and rear, the styling is identical to the current look of the pickup, at least for this prototype. While our spies didn't snap any shots of the interior, it seems safe to anticipate the usual Denali upgrades there, including better materials and additional tech features. Of course, expect a bump in price at the same time to pay for the improvements.

2017 GMC Sierra 2500HD All Terrain X eyes Ram Power Wagon

If where you're going, you don't need roads, you're spoiled for choice by American automakers. Ford has the F-150 Raptor, Jeep the iconic Wrangler, and Ram offers Power Wagon. And that's just the tip of the factory off-road iceberg. General Motors is getting in on the off-roading action with the Canyon and Sierra 1500 All Terrain X. Now, the automaker is adding another notch on its belt with the Sierra 2500HD All Terrain X. On the outside, GMC continues to the all-black trend as the rest of its off-roading-oriented lineup, which includes 18-inch aluminum wheels finished in black, a bespoke grille surround, black sport bar that's mounted in the truck's bed, and four-inch side steps in black. The All Terrain X will only be offered in two colors – Black Onyx and Summer White. Those looking for more off-roading capabilities and tack the Z71 off-road suspension package as an option on the All Terrain X, adding performance Rancho shocks, Hill Descent Control, and a shield for the underbody transfer case. Two engine choices lie under this crew cab pickup's massive hood - the 6.0-liter gas V8 or the all-new Duramax 6.6-liter turbo-diesel V8. The gasoline-powered V8 continues to make 360 horsepower and 380 pound-feet of torque, while the new Duramax turbo-diesel generates 445 horsepower and 910 pound-feet of torque. While the All Terrain X may not have the same murderous look as the Ram Power Wagon, it makes off-roading a luxurious affair. And it's blacked out. The 2500HD power wagon will be on sale early next year, with a pricing announcement coming sometime in the next few months. Related Video: Featured Gallery 2017 GMC Sierra 2500HD All Terrain X: LA 2016 View 12 Photos Related Gallery 2017 Sierra HD All Terrain X News Source: GMCImage Credit: Live photos copyright 2016 Drew Phillips / Autoblog LA Auto Show GM GMC Truck Off-Road Vehicles Performance 2016 LA Auto Show gmc sierra hd

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!"