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Watch how Corvette Racing's new collision-avoidance radar system works

When it comes to technology used in racecars, we generally expect it to trickle down to production cars, not the other way around. Well, Pratt & Miller has developed a new rear-facing radar that operates in a similar fashion to what we're used to in modern blind spot detection systems, only it is also capable of tracking cars as they approach and relaying vital information to the driver via a large display screen.
The innovative radar system debuted at last weekend's 12 Hours of Sebring for Corvette Racing, and this system makes perfect sense for endurance races like this since the cars sometimes have to drive through the night and in poor weather conditions.
The radar can detect cars even with poor visibility, and uses easy-to-distinguish symbols for the driver to identify.

Are you the 2014 Corvette Grand Sport?

When are stripes more than just stripes? Follow up question: Is the product development team at Chevrolet really cocky enough to hide the next C7 Corvette variant in plain sight? This very recently spotted, and ostensibly obscured C7 asks a lot more questions than it answers, but there's at least some evidence to support that it might be the next Corvette Grand Sport.
The first and most obvious tip-off that something is up with this 'Vette revolves around those silver stripes. Obviously the stripes themselves don't necessarily denote a new model. However, when Chevy recently launched its "colorizer" website for the Stingray, there was no provision made for racing stripes - solid colors only.
Grand Sport exhibit number two is actually an incriminating lack of badges. The production Corvettes we've seen to date have all carried Stingray badges on their fenders, just behind the vent. The car seen in these images has no such badges, which is an intriguing omission on an car that looks like a production-spec vehicle otherwise.

GM tinkering with Silverado, Sierra model mix amidst strong early sales

Variety, as they say, is the spice of life. That's a lesson that is currently being taught to General Motors, because despite a strong showing from its 2014 Chevrolet Silverado and GMC Sierra, the General's pickup sales still can't best those of cross-town rival Ford.
With 59,163 trucks moved, GM fell just over 1,000 units short of toppling Ford, and one of the main reasons for that, according to GM's chief sales analyst, was due to a lack of variety in the engines and body styles available on dealer lots. "We are still over-weighted toward crew-cab V8 trucks. Our light-duty mix will moderate over time as our launch progresses," said Kurt McNeil.
Loading dealers with the popular combination of the 5.3-liter V8 and the four-door, Crew Cab body style was intentional during the truck's launch, but as supplies of leftover 2013 models, which are being sold at heavy incentives, are beginning to wane, both budget-conscious and high-dollar buyers are looking elsewhere instead of at the volume model pickups.