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How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.

Playboy reveals its 2013 Cars of the Year

Vaunted men's magazine Playboy knows that its readers are nearly as interested in cars as they are in the female anatomy... sorry, we thought we could write that with a straight face. Anyway, the buff-book does occasionally fill some of its spreads with sexy metal, to accent all the rest of the sexiness.
To wit, the magazine has unveiled its feature on the 2013 Cars of the Year. Without giving us much in the way of criteria for the awards, nor a clear framing of the categories ("Responsible Ride" is a particularly challenging concept, especially when you consider that the Mazdaspeed3 was the winner), Playboy has nevertheless highlighted what we assume to be it's favorite 12 or 13 (depending on how you count) cars from the 2013 model year.
Headlining the class is the Porsche 911, which Playboy writers single out for having "remarkable electronic voodoo." BMW M5 is named "Slickest Sports Sedan" though the Cadillac ATS then follows on because "we couldn't resist giving the new Caddy a shout-out." The rest of the picks are pretty conventional (save, perhaps, the Honda Fit EV as "Ace Electric"), even if the categories and methodology are fairly wonky. Cruise through or gallery for a taste or check out the full list, here. The site is safe for work, and you can legitimately (this time) say that you were reading it for the articles.

GM to make most cars LTE hotspots for 2015

General Motors isn't the first automaker to deliver in-car Internet access, but a proposed plan announced today could make the technology more widespread than any of its competitors have offered. By the 2015 model year, most Chevrolet, Buick, Cadillac and GMC products in the US and Canada will offer 4G LTE mobile broadband access. Initially, GM will just be pairing with AT&T to deliver this service, but additional carriers will be revealed in the future.
Current in-car Wi-Fi hot spots are limited to 3G, but GM says that 4G LTE is 10 times faster than 3G service and will allow for full Internet access, including streaming video for entertainment as well as services like real-time traffic updates and navigation driving directions. There is also no need for a paired smartphone with this new system, which should make it easier to use, and GM and AT&T will also be working together to develop new apps for customers.
Buyers can expect to start seeing 4G LTE in their cars starting next year, and GM is already planning to expand the service to other global markets as well. All of the information from GM's announcement is posted in a press release below.