2007 Chevy Tahoe Lt- Low Miles, Leather, Moonroof, 3rd Row! on 2040-cars

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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 Chevy Silverado priced from *$24,585, V8 gets better economy than Ford EcoBoost V6

Chevrolet has thrown down the next hand in the pickup truck poker wars and revealed at least a couple of potential aces - depending on which numbers matter most to you. The 2014 2014 Silverado 1500 with its 5.3-liter EcoTec3 V8 gets 335 horsepower and 383 pound-feet of torque, is mated to a six-speed automatic, can tow 11,500 pounds with the optional Max Trailer Package and costs the same as the outgoing Silverado, $24,585 (*including $995 destination fee). Chevy says the Silverado also stands atop the fuel economy charts when comparing any competitor with a V8 engine - and some competitors with V6 engines. The two-wheel drive model returns 16 miles per gallon city, 23 mpg highway, 19 mpg combined in two-wheel drive guise and 16 mpg city, 22 mpg highway and 18 mpg combined as a four-wheel drive.
For context around those numbers, the most fuel efficient V8-powered 2013 Ford F-150 pickups lose about two mpg in every metric compared to the Silverado, the 3.5-liter V6 EcoBoost returning 16 city, 18 highway and 22 combined in two-wheel drive. However, that EcoBoost does have 365 hp and 420 lb-ft of torque. You can get a Ram 1500 with a 3.6-liter V6 that gets 25 mpg highway, but it has 305 hp and 269 lb-ft of torque. The 2013 Ram with the 5.7-liter Hemi V8 and its 395 hp and 407 lb-ft drops one mpg in every category to the Silverado. Its tow rating is 200 pounds beyond its nearest competitor, the F-150 with the Max Trailer Tow Package.
Elsewhere, the new Silverado gets a quieter cab with a redesigned interior, a new bed with improved load-management possibilities, disc brakes all around, tweaked steering and suspension, along with free standard scheduled maintenance for two years or 24,000 miles.

Why does the Corvette Stingray have so many vents? Here's why

Just looking at the new 2014 Chevrolet Corvette Stingray, it's not hard to see that the car's design was created with aerodynamics at the forefront, but Chevrolet designers point out exactly what went into designing the iconic coupe in a pair of recently released videos. The videos show the Corvette going through early design phases, including clay models and wind tunnel tests, as well as talking to the car's chief engineer, Tadge Juechter.
Both videos help explain various aspects of the C7 Corvette, but it's the aero tuning of the car that is most interesting. This includes extra attention paid to the lower air dam and vented hood to help reduce drag and lift, while the rear quarter inlets are for differential and transmission cooling. Juechter said that some of these aero-tuned elements were inspired from GM's involvement in racing.
If you have about five minutes and you can't get enough information about the new 'Vette, then check out the videos posted below.