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Redesigned 2021 GMC Yukon gets a diesel, AT4 model, Denali-exclusive interior

GMC's most robust family hauler is getting a complete redesign for the 2021 model year, including a new, off-road centric AT4 model, an upscale interior exclusive to its luxurious Denali model, an available air suspension, and, last but not least, a diesel engine.  With Americans obsessing over trucks, it's no surprise that GMC is going hard with its AT4s-for-everybody strategy; the Yukon is no exception. This will be the first model year for the new trim on GMC's largest SUV. This off-road model gets all the goodies you'll need to veer off the beaten path with confidence, including an extra 2.0 inches of ground clearance with the adaptive suspension option (more below), a two-speed transfer case, standard Goodyear all-terrain tires, an off-road mode for GMC's "Traction Select" drive mode system, hill descent control, and some extra underbody skid plates. Since GMC is a premium brand, even the AT4 gets some luxury appointments, such as a heated steering wheel, heated and ventilated front seats, and heated outboard second-row seats. The interior is also adorned in black leather with tan accents and "AT4" embroidery in the seat backs.  Speaking of premium, GMC will introduce an air-ride adaptive suspension with an off-road ground clearance mode as a late-availability option for several Yukon models, and this feature will be included on the Denali trim.  The Yukon and Yukon XL are GMC's variants of Chevrolet's full-sized SUVs, the Tahoe and Suburban. Their fundamental body-on-frame architecture is also shared with GM's half-ton pickup trucks, and thanks to that common engineering, they can also share powertrains. That's normally just a trivial side note when it comes to a new GM SUV announcement, but this time around, it's a bit more meaningful thanks to the introduction of a new light-duty, inline-six diesel in GM's truck lineup last year.  Yep, that means that for 2021, like the Tahoe and Suburban, the Yukon is getting a diesel option. The 3.0-liter Duramax makes the same 277 horsepower and 460 pound-feet of torque as it does in GM's trucks.  GMC's standard engine is still the 5.3-liter V8 that makes 355 hp and 383 lb-ft of torque. The 6.2-liter V8 is also an option like before, producing 420 hp and 460 lb-ft of torque. All engines come with a 10-speed automatic and a choice of rear- and four-wheel drive.

2018 GMC Acadia with 'Christmas Aero' modification gets in the wind tunnel

Tis the season of "Big" - big cheer, big parties, big bowls of eggnog, big decorations, and when it comes to your family hauler, big drag. Festive drivers who festoon their crossovers, minivans, and SUVs with wreaths, Rudolph noses, fuzzy antlers, and rooftop Christmas trees undo the years of work that car engineers devote to fractional gains in fuel economy. To put numbers to such fuel-guzzling madness, GMC started with a 2018 Acadia, optioned it with the Xmas Aero Package - both Standard and Plus versions - put it in Lockheed-Martin's wind tunnel. The resulting dip in fuel economy results probably won't surprise anyone who's used a roof rack - or, for that matter, their car's air conditioning. However, it might surprise you to find out which seemingly substantial decoration had no effect, and which seemingly innocuous decoration was about twice as bad as running the A/C on its Mr. Freeze setting. Check out the brief video above for the results. And consider placement of that bow carefully.

2024 GMC Canyon AT4X AEV Edition First Drive Review: The business-class Bison

McALLISTER, Mont. – Not far from MontanaÂ’s Ramshorn Peak is a beautiful body of water known as South Meadow Creek Lake. It sits just a hair below 9,000 feet and offers beautiful views of the surrounding highlands and — if youÂ’re lucky and the lighting is just right — a clear line of sight to Big Sky Country. To hear the locals tell it, you canÂ’t get there in a pickup truck. Apparently, to a GMC engineer, that comes across as an open challenge. And so I found myself in the two-horse town of McAlllister (not far from Bozeman), chilly in the fog of an early October morning, inspecting a line of GMCÂ’s midsize trucks in their hardest of hardcore variations. One half of the fleet was made up of the standard 2023 Canyon AT4X finished in a beautiful scarlet red; the other half, 2024 Canyon AT4 AEV Editions in a menacing gray that matched the dreary morning sky. Yep, that AEV. The Canyon AT4X is an already-capable little trail monster with all the off-road bells and whistles you could possibly ask for. ItÂ’s a virtual mechanical twin to the new Chevrolet Colorado ZR2, in fact, down to the 2.7-liter four-cylinder that produces 310 horsepower and a whopping 430 lb-ft of torque. Naturally, American Expedition Vehicles managed to turn that dial up to 11. More on that later. Canyon AT4X 3 View 32 Photos To the locals' point above, off-road trucks have existed for quite some time (just ask Marty McFly), but it has only been since their rise in popularity as mainstream commuters that the dedicated four-wheelinÂ’ pickup has really come into its own. The “you canÂ’t get there from here” Maine attitude at Bozeman latitudes betrays somewhat old-school notions about four-wheeling — and the fact that just about everybody in town owns some sort of ATV or side-by-side. The formula used to be pretty simple: You take the shortest SUV frame youÂ’ve got, add big stick axles to the front and rear, and then jack the thing up as high as you can without it falling over at the first sign of an incline. TodayÂ’s torque-monster engines have turned that on its ear. More torque means you can turn bigger tires, and what do bigger tires do? Well, among other things, they lift your truck off the ground. Shove enough tire under a truck and no matter where youÂ’re talking about, you can indeed get there from here. At its core, AT4X isnÂ’t groundbreaking.