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GM learning from current Chevy Volt owners as it works on next-gen model

Details of the second-generation Chevrolet Volt extended-range plug-in hybrid are coming in at a trickle, and the latest is that the 2016 model-year Volt will be improved in all meaningful areas, including performance and all-electric range, says General Motors powertrain director Larry Nitz. 60 percent of Volt customers only charge using a standard 110 outlet. Nitz was speaking to Autoline After Hours about the current and future Volt. He said that GM has been tracking Volt driving habits and found that about two-thirds of the Volts' collective miles are driven in electric mode, and that 81 percent of all Volt trips were done in pure EV mode. Additionally, Volt drivers plug the car in 10 times each week, on average. Nitz also said 82 percent of the Volt's commuting miles are coming from the plug instead of the gas tank. Oh, and 60 percent of Volt customers only charge using a standard 110 outlet. Last month, GM released a teaser shot of the 2016 Volt (above) and said the car would make its worldwide debut at the 2015 North American International Auto Show next January. Earlier this year, the Volt was reported to be getting a new chassis for the upcoming version. The Volt could use a bit of new life. Through August, Volt sales were down 12 percent from a year earlier to 13,146 units, and sales plunged 25 percent alone. That compares unfavorably to the Nissan Leaf battery-electric vehicle, whose 2014 sales have jumped 34 percent to almost 19,000 units. You can see Nitz dish the goods in the video below (Volt comments start at around minute 15). You will also notice AutoblogGreen contributor Gary Witzenburg talk about his history with the EV1 and share his take on the Volt. 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.

Recharge Wrap-up: Range-extended EV taxis in London, 2016 Chevy Volt interior two years old

The first Metrocab range-extended EV taxis are operating on the streets of London. The cabs use a 12.2-kWh battery and two 50-kW motors, as well as a 1.0-liter gasoline range extender. Fuel economy is 98 MPGe on the ECE101 cycle, and total driving range is over 348 miles before needing to charge or refuel. Cabbies can expect to save GBP20 to GBP40 (about $30 to $60) per day on average. "The cash savings on fuel are significant, the ride and comfort outstanding, and my first customers are thrilled with the new cab," says the first operator of the new EV taxi, Preston Morris. "With its air suspension providing unrivaled comfort, panoramic glass roof for views of the city and silent powertrain, what's not to like?" Read more in the press release below. Chevrolet has had the interior design of the 2016 Volt finished for two years already, according to GM interior designer John McDougall. Beginning around 2010, GM received sketches from designers worldwide before narrowing it down to a handful of designs. Then the top three choices were molded from clay. The chosen theme was then refined for up to 18 months. "Every little thing you can imagine goes into that," says McDougall. "The glare angle from the windows, the placement of the controls, the placement of the seat. You have to create something that's beautiful and functional." Read more at GM Authority and at Inside EVs. More details have emerged about the Second Life Batteries Alliance. Vattenfall has announced a research project in partnership with BMW and Bosch to use retired EV batteries for stationary, grid-connected energy storage in Hamburg, Germany. Over 100 lithium-ion batteries from BMW i3 and ActiveE vehicles will make up a two-mWh storage unit for grid balancing, enough to power 30 four-person households for a week. The system is "compact enough to fit in a small building," says Bosch. Such storage systems are especially fit for storing and moving alternative forms of energy, which often fluctuate in supply more than electricity from a traditional power plant. Vattenhall will operate the storage unit for 10 years, with Bosch managing the batteries, during which time the three partners hope to learn more about battery applications and their performance over time. Read more at Green Car Congress, or in the press release below.