1994 Gmc Sonoma Extended Cab on 2040-cars

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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 promises to add 20 EVs and fuel-cell cars to lineup, paid for by SUVs

DETROIT — General Motors outlined plans on Monday to add 20 new battery electric and fuel-cell vehicles to its global product lineup by 2023, financed by robust profits from sales of gasoline-fueled trucks and sport utility vehicles in the United States and China. "General Motors believes in an all-electric future," GM global product development chief Mark Reuss said on Monday during a briefing at the company's suburban Detroit technical center. Future generations of GM electric vehicles "will be profitable," Reuss said, but added it was not clear when GM could make all its new vehicle offerings zero-emission electric cars. Regulators in China and some European countries have floated proposals to ban internal combustion engines by 2030 or 2040. "We will continue to make sure our internal combustion engines will get more and more efficient," Reuss said. GM shares were up more than 4 percent in midday New York trading on positive comments from Rod Lache, auto analyst at Deutsche Bank. Automakers, including electric vehicle market leader Tesla, lose money on electric cars because battery costs are still higher than comparable internal combustion engines. The company offered sneak peeks of three EV prototypes: a Buick SUV, a sporty Cadillac wagon and a futuristic pod car wearing a Bolt badge. GM funds its forays into new technology using a river of cash generated by old-technology vehicles popular with its core customer base in the United States heartland. In comparison, Tesla has burned through an estimated $10 billion in cash and has yet to show a full year profit. GM earned more than 90 percent of its $12.5 billion in pretax profits last year in North America, amid robust demand for its lineup of large sport utility vehicles and pickup trucks. The company's profitable operations in China rely on consumer demand for an expanding lineup of gasoline powered SUVs. GM has previously announced plans to make some of its future electric vehicles capable of driving themselves in robot taxi fleets. The company offered sneak peeks of three electric vehicle prototypes: a Buick brand sport utility vehicle, a sporty Cadillac wagon and a futuristic pod car wearing a Bolt badge. GM collaborated with Korean battery maker LG Chem to build the Bolt battery system. Company officials did not say what companies would supply batteries for the larger fleet of vehicles promised by 2023. Fuel-cell vehicles will also play a role in GM's future, the company said.

GMC adds stylish new Elevation model to 2019 Sierra lineup

GMC has announced a new style-forward model for its forthcoming 2019 Sierra pickup. It's called the Elevation and it will be based off the Sierra double-cab model with a new turbocharged engine, aimed at buyers who want a little panache with their rugged capability. GMC marketing director Rich Latek says the Elevation "conveys a youthful, athletic presence" with the pickup's chiseled fenders and assertive, upright hood. As such, the Elevation gets body-color-matching door handles, bumpers and grille surround, plus black exterior accents like the grille insert, tow hooks, side window trim and standard 20-inch aluminum wheels. Headlights, tail lights and fog lamps will be given the LED treatment, with the former getting the new C-shaped designs that have already been unveiled on other trim levels. It will be offered in two- or four-wheel-drive configurations, with nearly 3 inches more leg room than the current model. A traction select system will use a dial that drivers can set to preset driving modes to adjust transmission shift points, throttle mapping and other systems. An X31 Off Road package will be offered and boasts tuned suspension, a locking rear differential, protective skidplates, dual exhaust and other features. Also available will be a ProGrade Trailering System that includes a Trailering App to help connect and tow a trailer, on top of additional tie-down points, enhanced cargo lighting and other perks for hauling camping or recreational gear. Inside will be a standard 8-inch infotainment system compatible with Android Auto and Apple CarPlay with a six-speaker audio system, plus USB Type A and Type C ports for charging mobile devices. As for the powertrain, it will come with an all-new 2.7-liter turbo inline-four engine that makes 310 horsepower and 348 pound-feet of torque paired with an eight-speed automatic transmission. Also available is a 5.3-liter V8 that uses a new efficient fuel management system that enables it to operate on anywhere from one to all eight cylinders, depending on demand. In early 2019, a new 3.0-liter turbo-diesel inline-six will also be offered, mated to a 10-speed automatic. The Elevation adds to Sierra models like the SLT and Denali that GMC unveiled earlier this year. The company has shaved as much as 360 pounds off the new 2019 model — plus more from the Denali, thanks to carbon fiber in the bed box — so fuel economy should see a boost, too. It goes on sale in the fall.