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2014 Chevrolet Corvette Stingray Convertible gives us a couple of looks

Put away your pixel paintbrushes, kids. Pack up your Photoshop. This is the real-deal 2014 Chevrolet Corvette Stingray Convertible in its first official images. The droptop Chevrolet will roll into the bright lights of the Palexpo exhibition at next week's Geneva Motor Show, a four-wheeled statement of intent that General Motors is serious about taking its Corvette franchise global.
Chevy isn't providing anything in the way of further details with these two shots, but we've learned at least a couple of things about the car shown here. First off, the example seen in these images is fitted with the optional Z51 Performance Package - something that isn't immediately evident because there's no sign of the coupe model's prominent ductwork on its rear haunches. In order to accommodate the power folding hard tonneau cover, the vents that feed the transmission and differential coolers have been relocated to the underside of the car. The dark paint color on this example also does a good job of muting the contrasting black front fender vents and hood opening - Z51-spec design details that have proven to be somewhat controversial.
One other thing to note: These two shots also display the Stingray wearing different alloy wheels than the split five-spoke design shown at the hardtop's Detroit Auto Show unveiling in January. The simpler, thin five-spoke wheels should do a good job of showing off the Z51's upgraded brakes, and they'll be optional on the coupe as well.

2016 Chevy Volt wins Green Car of the Year

The award ceremony for the 2016 Green Car Of The Year announcement at the LA Auto Show today started with a joke video by juror Jay Leno. Showing of a restored and refurbished 100-year-old Detroit Electric EV, Leno said that while there were a lot of different powertrains in the running this year, he didn't expect any German diesels to win. Yuk yuk. There was no doubt that Leno was right; there were no diesels in the finalist's circle. The winner this year was the new, second-generation Chevy Volt, a plug-in hybrid with a 53-mile electric range and 106 MPGe. The first-gen car won the title five years ago, making the Volt the first model to be crowned Green Car Of The Yera more than once. The other finalists this year were the Audi A3 E-Tron, the new Toyota Prius, the Hyundai Sonata, and the Honda Civic. One of Green Car Journal's most important factors in deciding the winner is widespread availability, said Green Car Journal editor Ron Cogan as he announced the award. Qualifying vehicles also have to be on sale by January 1st of the award year (in this case, 2016). For the record, AutoblogGreen readers also picked the Volt to win in our poll a few months ago with 42 percent of the vote. Second place was the Prius, with 21 percent. Earlier this year, Green Car Journal had to strip the awards from two diesel vehicles, the 2009 VW Jetta TDI, which won in 2008, and the 2010 Audi A3 TDI, the 2010 winner. We enjoyed our seat time in the new Volt, and you can read our review here. Related Video:

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).