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2019 GMC Sierra Denali First Drive Review | The more things change...

ST. JOHN'S, Newfoundland — Canadians love their GMCs. Both anecdotal and statistical evidence supports this. In certain areas of Canada, the Sierra outsells the Chevy Silverado. But in this area of Canada, Cape Spear, the morning fog and salt air are thick. This is the most eastern point in Canada, and the most eastern point of North America if you don't count Greenland. We woke up early and drove to the coast in the new 2019 GMC Sierra Denali, hoping to catch what was promised to be an absolutely spectacular sunrise. The sunrise was a no-go thanks to the fog, turning the sky into a grey mist that melted into the Atlantic. Still, if the world had an edge, this is what it would look like. Driving in an inspiring place like this invites introspection, and since we're in an GMC Sierra, why not examine the brand's place in the world? Recall that for years, a GMC showroom was just packed with slightly more expensive versions of other GM products. Badge engineering, if you will – a dirty word in our business, applied to such notable machines as the Cadillac Cimarron, Buick Terraza, Chevy Aveo and Saab 9-7X. Things, at least on the surface, seem to be changing. GMC says it's making a concerted effort to differentiate its product portfolio from the rest of GM, but the results have been mixed. The brands were supposed to have less product crossover. There's no GMC version of the Chevy Traverse and, initially, there was no Chevy equivalent of the GMC Acadia, though the new Blazer kills that advantage. The Equinox and Terrain are still basically the same vehicle, as are the new 2019 Silverado and 2019 Sierra. At least the two trucks look decidedly different. There's still a family resemblance, but most of the bodywork has been changed. Where the 2019 Silverado adopted some curves, the Sierra stuck with straight lines. Compare things like the headlights, wheel wells and doors. The Sierra still has a massive grille and — aside from the AT4 off-road trim — packs on as much chrome as a 1958 Cadillac, but that's what customers want these days. The Ford F-150 and Ram 1500 are no different in this regard, packing lots of chrome, hard edges, and frontal areas that would give passenger trains a run for their money. At first glance, you'd be hard pressed to tell the Sierra and Silverado's interiors apart from both each other and the outgoing models. It's basically the same design, though the Sierra makes do with some slightly nicer materials.

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.

GM may have teased a whole group of electric vehicles

During GM's big CES press conference, the automaker highlighted a number of its upcoming electric car-related projects from delivery vans to the upcoming flagship Cadillac Celestiq. In the middle of it all, a collection of mystery cars sat in the background behind speakers. They were in the dark, lit only with their running lights, and while it's possible they're just generic filler cars or concepts, we think they could be future products. Our best shot of the cars together is shown above, and we can pretty easily identify three of the vehicles. In the center is obviously the GMC Hummer EV. On either side of it are Cadillacs. To the left seems to be the Lyriq crossover, and to the right is the Celestiq sedan. Two of these cars have production dates, and the third has been confirmed for eventual production, just without timing. This is why we think the rest of the cars are upcoming models. The next most easily identified car is on the near right behind the Cadillac Celestiq. It very clearly has a Chevy bowtie illuminated in the running lights. And looking closely, it appears to be a pickup truck. It's difficult to make out anything more than that. The nose does look a bit more rounded and swept back than the brick-like designs of the Silverado truck line. That also squares with what seemed to be the upcoming truck that appeared in the background of yet another GM presentation. GM previously said this electric Chevy truck will be a full-size model with up to 400 miles of range. That leaves us with three more mysterious models. Over to the left behind the Cadillac Lyriq are what appear to be a pair of crossovers. The one on the far left looks low, curvy, and possibly with a fastback roof. The one on the right is taller, boxier, and probably more of a full-size people hauler. It's hard to say much more beyond that. They could be new electric Buicks, which would fit in nicely with that brand's crossover portfolio, and would likely be highly successful in China, where Buicks, crossovers and electric cars are all rather hot commodities. As for the mystery car on the far right, it's quite a puzzle. We can at least rule out Buick and Cadillac, and GMC since it's definitely a car, and a rather small one compared with the other cars on display. That leaves Chevy, and possibly the autonomous division Cruise. We're leaning toward it being a Chevy, since the first Cruise vehicle is going to be a boxy pod of sorts.