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2025 GMC Yukon AT4 teased, will likely follow 2025 Suburban template

It's time to begin teasing the 2025 GMC Yukon, the luxury truck division doing so with a glimpse of the front fascia on the AT4 trim. This being a refresh, we're not looking for major changes to hard points. In contrast to today's Yukon, it seems the new face will stress horizontal breadth instead of highlighting the central aspect of a giant grille and skid plate area. Starting with the taller C-shaped headlights on the 2025, a shorter horizontal element at the top no longer reaches all the way to the grille surround, and it's separated from the three main beams below by a body-colored piece extending from the grille cradle. Below the light, a new lower bumper treatment probably increases the aggression compared to today's truck. Instead of black centerpiece that houses the skid plate and a pair of tow hooks, it appears the entire bumper will be black and wrap around into the fenders. Finally, the grille looks the same, but its crossbars have been reprofiled.  As sibling to the 2025 Chevrolet Tahoe and Suburban that Chevy revealed last November, we expect many of the same updates here. Outside, that would mean refinements to the independent rear suspension for more nimble handling, new wheel designs, and availability of the second-generation 3.0-liter Duramax inline-six with 305 horsepower and 495 pound-feet of torque instead of today's 277 hp and 460 lb-ft. Inside, we expect a new instrument panel housing a 17.7-inch touchscreen for infotainment, and a column shifter replacing the push buttons on the center console. Updated trim materials — along with the overdue infotainment upgrade — should provide a finer sense of luxury than what's currently on offer.  If tech treats carry over, buyers will have access to the Connected Cameras feature for viewing and recording inside and outside of the vehicle for crash and security purposes. An Interior Motion Detection system can detect "micro-movements" in the cabin that could signal a baby or a pet left in the vehicle.  The Yukon might go further than the Chevy SUVs, seeing that GMC has some birthdays to celebrate: 2024 is the fifth anniversary of the AT4 trim and the 25th anniversary of the Denali trim. We'll find out later this year, GMC promising the Yukon reveal sometime after the new Acadia begins shipping to dealers.

GMC Hummer EV infotainment built with Unreal Engine used by 'Fortnite' and 'Rocket League'

We're only a couple weeks away from the reveal of the GMC Hummer EV truck and SUV. And we're expecting a lot of boasting about impressive capability and unique features. What we weren't expecting was for its infotainment system to be built on a video game engine. That's the news that has come out of Epic Games, creators of Unreal Engine, the basis of the Hummer's infotainment system. If you've been an avid video gamer anytime in the last 20 years, Unreal Engine should be recognizable. The first version of it powered Epic's "Unreal" and "Unreal Tournament" games, and more recent versions power multiplayer hits such as Epic's "Fortnite" and Psyonix's "Rocket League." The engine has been licensed out to countless other game developers for titles by both indie developers and large game companies. But its use in the GMC Hummer will be the first time it has powered a production car's infotainment system. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Epic didn't say which version of Unreal Engine is being used in the Hummer. Presumably it's a version of Unreal Engine 4, since Unreal Engine 5 hasn't been released yet. Also, while Epic released a trailer announcing the partnership and showcasing Unreal's 3D rendering and menu developing tools, it doesn't give us a peak at what the infotainment and instruments of the Hummer will look like. The company does tout fast boot-up times, powerful graphics, and over-the-air updates as useful features included with Unreal. But for a clear look at the final product, we'll have to wait for the October 20 reveal. Related Video:

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.