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2021 GMC Canyon AT4 will offer an Off-Road Performance Edition Package

In March 2018, GMC announced the 2019 Sierra 1500 AT4, the alphanumeric finale denoting heightened ridge height and off-road capability. In December of that year, GMC took the AT4 further, creating an Off-Road Performance Package that boosted horsepower and torque, and re-soled the 18-inch machined rims in Goodyear Wrangler DuraTrac Mud Terrains. History will repeat itself in 2020, one truck size category down. GMC unveiled the Canyon AT4 (pictured) in Vail, Colorado, earlier this month, and now GM Authority reports that a Canyon AT4 Off-Road Performance Edition Package is on the way later this year.  The Canyon AT4, which replaces the Canyon All Terrain, upgrades the standard truck with all the erstwhile All Terrain kit like tuned suspension, Advanced Hill Descent Control, transfer case skid plate, automatic locking rear differential, and 31-inch Goodyear Wrangler DuraTrac tires on 17-inch aluminum wheels. Design tweaks include the new, bolder front fascia and red recovery hooks. The Canyon AT4 Off-Road Performance Package goes a different route than on the Sierra, improving ruggedness instead of engine output. GMA says the suite includes front and middle performance skid plates, rocker protection, a spray-on bedliner, performance exhaust tip, and 17-inch gloss black aluminum wheels in favor of the Dark Argent Metallic units. A front leveling kit removes the factory rake. This variant will wear a black AT4 badge as opposed to the regular red and chrome AT4 denominator. Inside, we'll guess the AT4's Kalahari stitching and embroidered headrests stay in the game. They'll be joined by all-weather mats. Since GMC hasn't announced the upfit, we don't have pictures or pricing. Tallying up what individual options we could on the 2020 Canyon All Terrain came to $1,970, but that doesn't reflect pricing for next year's new AT4 trim, nor does it include components like the front leveling kit or gloss black wheels. GM Authority said production should begin in June or July, so we can look forward to info closer to summer. Related Video:    

2015 GMC Canyon is a Chevy Colorado in Sierra clothing [w/video]

Ford may not offer the Ranger in America anymore, nor Dodge (or Ram) its Dakota. But General Motors - not unlike Toyota with its Tacoma and Nissan with the Frontier - isn't about to give up on the midsize pickup market. Less than two months ago, it revealed the new Chevrolet Colorado, and now it's following up with its mechanical twin, the 2015 GMC Canyon.
Launched today ahead of its reveal at the Detroit Auto Show, the Canyon slots into the GMC lineup (and differentiates itself from its Chevrolet twin) with styling that closely apes the larger GMC Sierra 1500 and Sierra HD, only a size or two smaller. Oh, there are visual differences, like a subtly different grille treatment and lower fascia, but it still maintains its big brother's square-jawed good looks and rectilinear flared fenders.
Two aluminum-block engines with direct injection and variable valve timing are available: a 2.5-liter inline-four comes standard with 193 horsepower and 184 pound-feet of torque, and a 3.6-liter V6 is available with 302 hp and 270 lb-ft. Buyers will also be able to choose between three bodystyle configurations, three trim levels and either two- or four-wheel drive. A six-speed automatic transmits the power to the road, but a six-speed manual is available on the base model with the 2.5 and 2WD, and there's an All Terrain package available on SLE models. A diesel is expected later.

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.