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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.

2014 Chevrolet Corvette Stingray Convertible is a Swiss hit

We've just received an early peek at the 2014 Chevrolet Corvette Stingray Convertible here at the Geneva Motor Show. General Motors was kind enough to let us attend the final dress-rehearsal for its press conference scheduled for tomorrow's opening media day, and we've come away with a good look at the droptop C7 in person.
In the metal, the new Corvette Convertible seems somehow less avant-garde than the Coupe, even in Z51 Performance Package guise. That's not necessarily a bad thing - more of an observation. That initial impression may be because the C7's new greenhouse is one of its most prominent departures from Corvettes past. While we didn't get to see the top erected, there's no rear side window in the stock images that Chevy has already released, suggesting the C7 convertible's profile will look a lot like its C6 predecessor. And with the new power tonneau cover in place, there are also no rear ducts that come as part of the Z51 package (they've been moved under the car).
As with its predecessor, the tonneau is a handsome double-bubble piece, and the body-color "waterfall" element into the cabin between the seats has made it to the new model as well. Thus, the overall look with the top down should be a bit more familiar to prior-gen C6 owners - if you're one of those put off by the C7's new shape, you'll probably appreciate the convertible bodystyle more than the coupe.

Consumer Reports criticizes small turbo engines for misleading performance, fuel economy claims [w/video]

Consumer Reports has taken aim at at small-displacement, forced-induction engines, saying the powerplants don't manage to deliver on automaker fuel economy claims. Manufacturers have long held that smaller, turbocharged engines pack all power of their larger displacement cousins with significantly better fuel economy, but the research organization says that despite scoring high EPA economy numbers, the engines are no better than conventional drivetrains in both categories. Jake Fisher, director of automotive testing for Consumer Reports, says the forced induction options "are often slower and less fuel efficient than larger four and six-cylinder engines."
Specifically, CR calls out the new Ford Fusion equipped with the automaker's Ecoboost 1.6-liter four-cylinder engine. The institute's researchers found the engine, which is a $795 option over the base 2.5-liter four-cylinder, fails to match competitors in acceleration and served up 25 miles per gallon in testing, putting the sedan dead last among other midsize options.
The Chevrolet Cruze, Hyundai Sonata Turbo and Ford Escape 2.0T all got dinged for the same troubles, though Consumer Reports has found the turbo 2.0-liter four-cylinder in the BMW 328i does deliver on its promises. You can check out the full press release below. You can also read the full study on the Consumer Reports site, or scroll down for a short video recap.