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General Motors CEO Provides Few Details In Appearance Before Congress

It was only two months ago that Mary Barra, freshly crowned as the new General Motors chief executive officer, visited Washington DC as an esteemed guest of First Lady Michelle Obama for the State of the Union address. On Tuesday, Barra returned to the Capitol under more strained circumstances. For more than two contentious hours, she took questions from members of a House of Representatives subcommittee investigating General Motors years-long delay in initiating a recall of millions of vehicles that contained a defect that has killed at least 13 people. Why did GM accept faulty ignition switches that were below the company's set specfications? Why did GM learn about the problem in 2001 yet take no action until 2014? Will GM compensate victims' families even though the company's bankruptcy may limit its liability? Those were a few of the questions members of the House Oversight and Investigations Subcommittee asked. Few concrete answers were forthcoming. For her part, Barra sidestepped most of the questions, saying she wouldn't have information needed to answer them until an internal review is completed. David Friedman, the administrator of the National Highway Traffic Safety Administration, testified after Barra. The biggest news that emerged from the hearing was that General Motors has retained attorney Kenneth Feinberg to advise the company on its civil and legal responsibilities. He has made a career of resolving disputes and serving in a 'fixer' role, serving as the chief of the federal government's September 11th Victim Compensation Fund, as an administrator of compensation fund for victims of the BP Deepwater Horizon disaster and a similar fund for victims of the Boston Marathon bombing. Barra, who has been GM's CEO since January but been with the company since 1980, expects to meet with Feinberg on Friday, and have a concrete plan within the next 30-60 days. Yet Barra would not say for certain Tuesday that GM would compensate the victims at all. Despite repeated questions from Rep. Diana DeGette (D-Colo.), Barra did not outline the company's intentions. "I assume GM is hiring (Feinberg) to help identify the size of claims and then compensate the victims? Is that right," DeGette asked. "Is GM willing to put together some kind of a compensation fund for these victims that Mr. Feinberg will then administer?" "We've hired him to help assess the situation," Barra replied. "So really, there's no money involved at this point," DeGette asked.

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.

Why 2015 is going to be a huge year for trucks

Nissan chief executive Carlos Ghosn took center stage to introduce the 2016 Titan last week at the Detroit Auto Show. He spoke of the truck's new features, impressive Cummins V8 diesel engine and the extensive amount of time and money required to build a modern, competitive pickup truck. "We have done all of this because we see opportunity – an opportunity in the unmet needs of today's American truck customers," Ghosn said. He was speaking about the Titan, but his thoughts echo the industry's mindset: When it comes to trucks, find an opportunity and attack. Even with CAFE regulations looming and fickle consumer preferences, investing in trucks is a no-brainer for automakers. Some consumers will always need a truck for their job or lifestyle. And some people will always want one, whether they need it or not. With that in mind, here are four reasons why the pickup-truck sector is more important than ever and poised for growth in 2015. View 24 Photos The Nissan Titan Is Back Okay, it never left, but the Titan hadn't been redesigned since its launch in 2003, and Nissan sold more NV200s than Titans in 2014. It's an understatement to say the truck was languishing. That all changes with the 2016 model. The Titan will come in two variants, a traditional fullsize competitor and the Titan XD. The XD will lead the market launch, and it arrives late this year. It's pitched as a "whitespace" offering, Nissan sales and marketing vice president Fred Diaz said. The idea is to offer something in the general size and price range of a fullsize truck, but also have some of the capability of a heavy-duty truck. The XD uses a fully boxed ladder frame, the chassis design from Nissan's commercial division, and the wheelbase is about 20 inches longer than other Titan models. The XD, which Nissan is calling the flagship of the line, will be the only model with the 5.0-liter Cummins turbodiesel V8. It produces 310 horsepower and 555 pound-feet of torque, while being able to tow 12,000 pounds. V6 and V8 gasoline models will also be offered on the Titan XD and the standard, non-XD model. When production ramps up, the Titan will be sold with several cabs, beds and trims. New features include trailer sway control, an integrated trailer brake controller, more storage options in the cabin and even laminated front and rear side glass to reduce outside noise. All of this has given Nissan fresh confidence in an area where it admittedly has been lacking. "We can compete," Diaz told Autoblog.