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Chevy Corvette gets Valet Mode with Performance Data Recorder [w/video]

For the 2015-model-year, Chevrolet introduces Valet Mode for the Corvette, an enhancement to the Performance Data Recorder (PDR) already available and to your peace of mind. The PDR already captures 720p HD video with a windshield-mounted camera, records interior audio with a cabin microphone and gathers telemetry data using GPS, saving the data to an SD card in the glovebox. You can then watch your track-day antics with various information overlays on the center console screen.
Valet Mode will let you hit 'Replay' when your car gets pulled up front smelling vaguely of fricasseed clutch. Turned on by entering a four-digit code, it also locks the interior storage spaces and turns off the infotainment system. It can't be turned off until the code is re-entered. There's a press release below with more information as well as a video that explains how it works, with the obligatory dig at the 'Vette's biggest foe.

Chevy already offering discounts on 2016 Volt

The second-generation Chevrolet Volt has a longer range than the first-generation version, but General Motors doesn't appear to want to take any chances of the extended-range plug-in not being well-received. The US automaker is already offering some cash incentives to make sure the 2016 Volt moves briskly. In fact, GM is offering incentives worth up to $1,000 through November 2 in some states, Green Car Reports says, citing CarsDirect. Most of the country won't get the second-generation Volt until next year, so GM is looking to keep all potential buyers satisfied. That means perks for folks in California, Connecticut, Massachusetts, Maryland, Maine, New Jersey, New York, Oregon, Rhode Island and Vermont - the states where the new 2016 Volt will go on sale first. Buyers can pick up another $500 in incentives by luring a non GM-vehicle owner into buying a new Volt. And then, of course, there's the $7,500 federal-government perk, in addition to any goodies your particular state will throw in via tax breaks. For everyone else, GM is offering as much as $2,500 off the 2015 model year Volt. The 2016 Volt has an MSRP of $33,995, which is actually slightly less than the $34,170 sticker price on the 2015 model. The new version has a 53-mile all-electric range, 15 miles longer than the first-generation Volt. With a lower price and more electric miles, GM hopes to reverse falling Volt sales. Through September, GM sold 9,264 Volts, down 36 percent from a year earlier. You can read our First Drive impressions of the 2016 Volt here. Related Videos: Featured Gallery 2016 Chevrolet Volt: First Drive View 24 Photos News Source: Green Car Reports Green Chevrolet GM Hybrid incentives volt

'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).