2013 Gmc Sierra 2500 Sle on 2040-cars

Auto blog

The Hummer EV Edition 1 is sold out and it'll be years before other trims arrive

When the 2022 GMC Hummer EV was revealed, GMC noted that there would be lower trims available. The company has since provided a few more details on those lower trims, which is helpful to know now that the only trim on sale next year, the Edition 1, was sold out in a scant 10 minutes. However, it's going to be a long time before they're all available.  The entry-level GMC Hummer EV is the EV2. This is the model that will start at $79,995, and unlike the Edition 1, it gets just two motors, one for each end of the truck, each with electronically locking differentials. Output is down to 625 horsepower and a torque rating of 7,400 pound-feet. Note that this and all other reported torque numbers are after the torque multiplication by the single-speed transmissions, hence the extremely high numbers. The company hasn't given torque numbers at the motors, which would be more comparable to other electric cars. Range is also reduced to 250 miles, probably due to a smaller battery pack. Fast charging is also restricted to 400-volt charging, so it won't be as fast as the higher trim models. The removable roof panels, retractable rear window, MultiPro tailgate, Super Cruise and 35-inch tires are standard. This model only gets fixed steel suspension and two-wheel steering. The EV2 will be the last of the trim levels to go on sale, with a target of spring 2024. Yes, as in 3.5 years from now.  The next level is the EV2X, which will be available a year earlier in the spring of 2023. It gets the same powertrain as the EV2, but adds 800-volt fast charging and a 300-mile range. It also gets the adaptive air suspension and four-wheel steering, plus the associated party tricks of Crab Mode and Extract Mode. This model costs $89,995. The earliest Hummer EV that isn't an Edition 1 and therefore not yet sold out will be the EV3X, the entry-level three-motor model. It goes on sale in the fall of 2022 at a price of $99,995. It's not quite as potent as the Edition 1, though, with an output of 800 horsepower and 9,500 pound-feet of torque. It also lacks the "Watts to Freedom (WTF)" launch control feature. But it does get torque-vectoring with the dual rear motors, which can also lock their speeds to be equal like with the mechanical locking differential at the front. The EV3X's range is 300 miles like the EV2X.  As for the Edition 1, it started $112,595 before it was sold out. Customers are to expect them in fall 2021.

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.

2017 GMC Acadia comes into focus

The future slate of crossovers from General Motors reportedly ride on the company's new, scalable Chi platform. With short- or long-wheelbase configurations possible, the chassis conceivably allows the automaker to be more adaptable in the configuration of its CUVs. Cadillac already appears to be testing Chi for the luxury brand's future SRX/XT5, and here it is again under heavy camouflage underpinning the next GMC Acadia. Unfortunately, the Acadia is so well concealed here that it's extremely difficult to pick out any of the styling changes, though the squared-off fenders and faint GMC logo peaking through the tape on the front wheels reveal what this vehicle is. Up front, the grille appears to sit somewhat lower than the current model, and the vertical LED running lights are easy to pick out. The orientation of the taillights through the camo suggests wraparound units not too dissimilar from the current Acadia (or is that Saturn Outlook?). The next-gen Acadia is expected to debut in 2016 as a 2017 model year vehicle. The powertrain options may include the current 3.6-liter V6, a four-cylinder and possibly even a turbo V6, and GM's new nine-speed automatic might also be for offer. With a year before the reveal, take a look at these photos for a first look. Featured Gallery GMC Acadia Spy Shots View 12 Photos Image Credit: KGP Photography Design/Style Spy Photos GMC Crossover gmc acadia