2007 Gmc Sierra 2500hd Classic on 2040-cars

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2019 GMC Sierra spied sporting just a thin wrapping

A new Chevy Silverado is on the way, and along with that comes it's fraternal twin, the GMC Sierra. We've seen spy shots before, but, like the Silverado we saw a few days ago, this is our best look yet. Nearly all of the loose-fitting camouflage has been removed, giving us a decent view of the bodywork. A brief look shows that the Sierra and Silverado will have significant styling differences for this generation. In the past, GMC trucks have been little more than rebadged Chevrolets. That's been changing in recent years, and the divide seems to be growing larger. The grille looks much larger than the Silverado's and there appears to be a small inlet right where the hood meets the front. From the side, we can see that the two trucks have different fenders and beds. The wheel wells on the GMC are squared off at the rear. Compare that to the round wells on the Chevy. Out back, the design is far more similar. Both trucks appear to have rear-facing exhaust outlets. The taillights, too, look to have close to the same shape. A big bulge in the center of the tailgate likely hides a large GMC badge. We still don't have a firm reveal date, but look for some further news this auto show season. Related Video:

The 2017 GMC Yukon XL Denali: Not just for the fertile set

I have a sis whom I've nicknamed "The Vickster." She is a beautiful Amazon, 6'1 on a good day and is the mom to a singleton. So why would my sis need to own a GMC Yukon XL Denali when she doesn't have a brood? Well to this I say, is there a written rule somewhere that states behemoth SUV's must be solely purchased by, you know, school-run moms? I think not! Even though the 2017 GMC Yukon XL Denali is tanker-sized and can swallow up to nine passengers, it has road presence and supreme luxury to boot which is a real draw for not just the fertile set. The Yukon XL Denali is an in-your-face kind of vehicle, and it was all in mine. The monolith has a presence, there's no denying, and even though it is big from every angle, it is far from odious. The stately looking ride has nicely defined slabs of metal, boxy proportions that make you look as it glides down the highway. Giving the Yukon XL my front-to-back once over, I liked its imposing mesh grille, nicely placed chrome accents and badges, riveting upsized wheels, and attractive high-intensity discharge (HID) headlamps and LED rear tail lamps. Once I settled into the cavernous and swanky realm of leather and mellow accent lighting that makes up the Yukon XL's interior, I then realized why "The Vickster" opted for this vehicle. The SUV's interior design is not overdone, no excessive bling to the point of blindness! Tasteful appointments on the Yukon XL include soft-touch leathers, aluminum trim, wood inlays, La-Z-Boy comfy seating in the first two rows (2nd-row power-release fold-and-tumble bucket seats); and thankfully, the non-gizmos overkill command center has large and ergonomically comfy controls. Space for a leggy crew is more than ample in the first and second rows. The SUV's available power folding, third-row fold-flat seats, however, are not exactly cut out for those who have gone past middle school as the seating is less bolstered and a little too close to the floor. Loved the wide and cushy center console that is not only spacious enough for hanging folders or a laptop but most importantly, it's elbow-friendly! Technology on the Yukon XL did not disappoint—particularly with the available built-in 4G Wi-Fi Hotspot for up to seven devices that kept me connected wherever I roamed.

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.