Chevrolet Silverado, 1500, 6.5l Turbo Diesel, 4wd, Extended Cab on 2040-cars

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2021 GMC Canyon trims overhauled, SL and SLT disappear

Until this year, the GMC Canyon has offered six trims in two drivetrains: SL, a base model simply called Canyon, SLE, All Terrain, SLT, and Denali, with all but the SL available in either 2WD or 4WD. GM Authority credits "dealer sources" for news that the 2021 Canyon has had its trim steps overhauled. According to the chart in the report, the SL and SLT are no more, the base Canyon gets replaced by a trim called Elevation Standard, and SLE turns into Elevation. We already know that All Terrain has given way to AT4, while Denali remains in the top spot. Trim content doesn't change with the names, but there's no equivalent for the SLT trim in terms of spec. The GMC site lists the 2020 SLE and SLT on the same page, and a shopper must burrow into the spec comparison page to figure out the differences. The SLT only comes with the 3.6-liter V6 and eight-speed transmission, and makes features like remote start, climate control, heated mirrors, heated seats, hitch guidance, and a spare tire standard equipment. It also chromes the exterior door handles, and offers a Cocoa/Dune leather interior that can't be had on the SLE. It's possible the SLT's $4,700 premium over the SLE led more buyers to start with the SLE and add the engine and options they wanted.   We have a number of questions that we'll need to wait for GMC's official announcement to answer. The 2020 Canyon offers an Elevation Edition package for $650 that adds a black grille with body-colored surround, and 18-inch Satin Graphite wheels in all-terrain rubber. There's also a California Elevation Special Edition for $1,195 with all-weather floor liners, assist steps, and mud flaps. They could be optioned on the SLE but not the SLT. With the addition of two Elevation trims, we'll find out if the packages get renamed or go away. Separately, CarBuzz spotted a 2021 GM Fleet Order Guide that mentions a leveling kit option, LPO Code SQS, for the Canyon and the Chevrolet Colorado. We noted the inclusion of a leveling kit in the coming Canyon AT4 Off-Road Performance Package. According to the order guide, the option can be ordered only for the Canyon AT4 trim, but it's not clear if that's an a la carte choice or if buyers must order the Off-Road Performance Package. On the Chevy, the rake-removal equipment can be had with the Colorado 4x2 Z71 or the 4x4 Work Truck, LT, and Z71. 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.

Jay Leno joins the dark side with Darth Vader's car

There still isn't a better Star Wars villain than Darth Vader. The Sith Lord defines menacing with his black suit, deep voice, and a penchant for choking underlings. Maybe The Force Awakens can introduce a better bad guy when the film hits theaters in the coming days, but Vader remains king until then. Jay Leno now shows some respect for the dark side of the force by welcoming Darth's car into his garage. This isn't just the tiny Hot Wheels toy, but the fully drivable version that premiered last year at San Diego Comic-Con. The car's design clearly evokes Vader's iconic helmet, but it still looks like a mean hot rod. Designer Bryan Benedict also shows Leno a few other Star Wars touches in the styling, like the light saber side pipes and Imperial logos on the wheels. One of the coolest features is that the roof rises out of the way to let in passengers, which is a small nod to a scene from The Empire Strikes Back. Underneath the Vader-inspired shape, the car uses a heavily modified C6 Chevrolet Corvette platform, and Jay gets to take it for a short drive. Leno even leans into the dark side with some maniacal laughter while behind the wheel. Related Video: