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Callaway debuts its new C7 Stingray at National Corvette Museum

Callaway showed off its first tuned version of the 2014 Corvette Stingray at the National Corvette Museum last week, giving the rampant enthusiasts of America's sports car a look at the roughly 620-horsepower, supercharged rocket.
Unlike the Corvette SC610 we showed you back in January, this Stingray packs a fair bit more oomph. Horsepower is only up ten ponies, but torque has jumped from 556 pound-feet to "at least" 600 pound-feet. Neither horsepower nor torque is official quite yet, although Callaway is expecting to know just what its creation can do once testing and validation is completed later this month.
The 6.2-liter, supercharged V8 now boasts a new, three-element intercooler, which Callaway claims only allowed the inlet air temperature to increase by ten degrees Fahrenheit during dyno runs. Previous designs saw a 35-degree-Fahrenheit jump. The exhaust system has also been fettled with, and now is even less restrictive.

Chevy Corvette Stingray picks up another award, this time from Automobile

The new Chevrolet Corvette Stingray has picked up another buff book accolade after capturing Road and Track's Performance Car of the Year award. The seventh-generation of America's sports car (sorry Viper, Mustang, et al.) has been named Automobile Magazine's Automobile of the Year.
Automobile's award to the Corvette over competitors is the mirror image of its rival Motor Trend, which named the Cadillac CTS its car of the year over the C7. The CTS was, according to the Automobile team, the closest contender to the mighty Stingray. Great news all around for General Motors it seems.
As for what pushed the Corvette past its distant, four-door cousin, Automobile commended its excellent, 6.2-liter V8 calling the car's performance "simply awesome" while also remarking that it is easier to drive fast than ever before thanks to steering and chassis tweaks. Following a theme set by other publications, there were also plaudits for the interior, of all things, with the buff book complimenting the car's ergonomics and material quality, while also praising the standard seats.

GM warning 800,000 owners that their cars may need oil changes more frequently than they say

The days of changing your engine oil every 3,000 miles are long gone thanks to most cars having automatic oil monitoring systems, but about 800,000 General Motors vehicles apparently have incorrect monitoring software that is leading to premature engine component wear. According to Autoweek, certain 2010-2012 Buick LaCrosse, Regal, Chevrolet Equinox and GMC Terrain models equipped with 2.4-liter four-cylinder engines could be going too long in between oil changes resulting in a higher-than-normal number of warranty claims for the engine's balance chain. The balance chain links the balance shaft to the crankshaft, and a worn one can produce higher noise levels.
As a fix, GM dealers will be reprogramming the software for the monitors in an effort to reduce the interval between oil changes, which varies based on driving habits and conditions. Through February 2015, the software update will be done at no cost to vehicle owners, but since this is not a recall, after that point, it will be up to the discretion of dealers as to whether or not they will charge for the service. What isn't immediately clear is whether GM plans on giving assistance to out-of-warranty customers who are experiencing engine issues from the worn chain.