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GM considering new powertrain options for large SUVs

Aside from the new General Motors offerings, there's not a whole lot of action going on in the fullsize SUV segment. That doesn't seem to be stopping GM from pushing the envelope in the market as Automotive News is reporting that the automaker is looking to introduce some new powertrain options into the Chevy Tahoe (and Suburban), GMC Yukon (and Yukon XL) and the Cadillac Escalade - all have been redesigned for the 2015 model year.
Now, we already know that GM and Ford are collaborating on nine- and ten-speed transmissions for a broad range of applications (including the big SUVs), but this new report says that GM is also considering other options as a way to one-up the competition and, of course, to optimize fuel economy. AN quotes Jeff Luke, executive chief engineer for GM trucks, as saying that "interesting powertrain technologies" are coming including a return of a hybrid SUV and possibly even a diesel engine. Although it sounds like the latter could come down to how customers respond to the 2014 Jeep Grand Cherokee EcoDiesel.

2023 Chevrolet Silverado HD reportedly getting mammoth torque

Chevrolet just gave the light-duty Silverado a significant round of updates. It hasn't detailed the changes it has in store for the heavy-duty model yet, but a recent report claims the truck will arrive with significant engine upgrades. Without citing sources, website TFL Truck reported that the current pickup's 6.6-liter Duramax turbodiesel V8 will return in the updated model. Its displacement won't increase, but its output will reportedly grow to 505 horsepower and a mammoth 1,085 pound-feet of torque. To put those figures into perspective, the 6.6-liter makes 445 horsepower and 910 pound-feet of twist in the 2022 Silverado HD; GMC's Sierra HD is available with it as well. Bumping the Duramax's output is a way to keep up with the competition. Arch nemesis Ford offers buyers who have extremely heavy things to tow 475 horsepower and 1,050 pound-feet of torque from a 6.7-liter turbodiesel V8. Over at Ram, the most powerful engine available in a heavy-duty truck posts numbers of 420 and 1,075, respectively. If the report is accurate, Chevrolet will enviably take the horsepower and the torque crowns in the segment. What remains to be seen is what effect the increases will have on the Silverado's towing capacity. As of writing, it's capable of towing up to 36,000 pounds (approximately 15 times the weight of a 2021 Mazda MX-5 Miata). Moving out of the engine bay, the 2023 Silverado HD will receive an updated exterior design that will again help differentiate it from the smaller, light-duty model. We're expecting the next round of updates will also bring new tech features, and it's reasonable to assume that the trim structure will evolve; Chevrolet might notably shift the HD in a more outdoorsy direction to satisfy a growing demand for off-road-focused trucks in the United States. None of this is official; Chevrolet is keeping its lips sealed about the updated Silverado HD. Full details will likely emerge in the coming months, and sales are tentatively scheduled to start in time for the 2023 model year.

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