2020 Gmc Yukon Denali on 2040-cars

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GM crab walked the Hummer EV truck up and down Woodward this weekend

Sometimes, manufacturers like to show off their fancy new wares at the Woodward Dream Cruise. It’s largely done through static showcases with big displays for the public to gawk at. However, GM did something a little different with its GMC Hummer EV truck this year. Instead of parking it at the Chevy and GM display area, it took to Woodward Avenue itself to show off the Hummer in pre-production form. Not only did GM drive the electric truck on the road in front of thousands, but it crab walked the whole way. This was our first time, and probably most of the publicÂ’s first time seeing the Hummer EV crab mode in person. Judging from the crowdÂ’s reaction (GM got its wish of everybody paying attention), folks are impressed, and maybe a bit confused at the HummerÂ’s sideways movements.  ItÂ’s a strange spectacle to see in person. At first, the truck appears as though itÂ’s sliding sideways on ice in a smooth, graceful slide. ThatÂ’s because even though the wheels are turned, the front of the truck is still pointing dead straight ahead. The GM employee behind the wheel of the prototype appeared to be moving forward at about 5-10 mph — it appears shockingly quick in person for the way this behemoth of a truck presents itself. The tech making it work is rather simple in concept. GM simply took existing rear-wheel steering technology, then amplified and modified it for this type of movement. Whereas most cars with rear-wheel steering max out at around 5 degrees of lock with the rear wheels, this Hummer can turn the wheels up to 10 degrees. Turn the wheel left or right in crab mode, and the Hummer moves diagonally down the street. If you use it for its intended purpose, crab mode is meant to help you navigate the Hummer through trails it might otherwise be too big to fit through using regular steering. In reality, we suspect most folks might use crab mode in the exact same fashion as GM did this past weekend: to impress people. And honestly, we canÂ’t blame them. It was a seriously cool sight to see. Crab mode in action: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

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.

2016 GMC Terrain refresh revealed

Posting its best-ever sales year in 2014, the GMC Terrain is hauling in sales, conquest buyers, and profits for the brand. GMC wants that to continue with its refresh for the 2016 model year, which sees the underlying formula left untouched under a raft of cosmetic and trim changes. There will be four trim levels: SL, SLE (SLE-1 and SLE-2), SLT, and Denali. They all get a front fascia with a lot more character, sculpted with chrome-outlined, C-shaped ornamentation, and all but the base SL version feature chrome accents on the grille. Flanking that, the headlights get new LED DRL signatures and the hood gets a power dome. The Denali gets new 19-inch alloys, models below it get new 18-inch wheel designs, and the sheetmetal color palette expands with the addition of White Frost Tricoat and Crimson Red Tintcoat. Beyond a revised center console, a mix of cabin offerings spice up the various trims. Premium cloth is the go-to for the SL and SLE, "Saddle Up" leather is an option on the SLT as well as an eight-way passenger seat, and a two-tone, dual-material Light Titanium and Jet Black interior is possible inside the Denali. Assistance features migrate down, with Side Blind Zone Alert and Rear Cross Traffic Alert available on the Terrain SLE and SLT for the first time. Engine choices remain the 182-horsepower Ecotec 2.4-liter inline-four, and the 272-hp 3.6-liter V6. The press release below has more details, and we'll have more on it live from the show floor. GMC Introduces 2016 Terrain New appearance, features build on success in growing compact SUV segment NEW YORK, March 31, 2015 – Distinguished by a new, more contemporary front-end appearance, the 2016 GMC Terrain and Terrain Denali were introduced today, ahead of their public debut at the New York International Auto Show. The 2016 Terrain lineup features new front and rear fascias, new grille designs, a power dome hood, light-emitting diode (LED) daytime running lamps and additional updates. Side Blind Zone Alert and Rear Cross Traffic Alert are offered on SLE and SLT models for the first time. "Terrain is a popular choice in the growing compact SUV segment, introducing drivers to GMC's professional grade design and features," said Duncan Aldred, vice president of GMC Sales and Marketing.