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GM recalling 8.4M cars, 8.2M related to ignition problems

General Motors today announced a truly massive recall covering some 8.4 million vehicles in North America. Most significantly, 8.2 million examples of the affected vehicles are being called back due to "unintended ignition key rotation," though GM spokesperson Alan Adler tells Autoblog that this issue is not like the infamous Chevy Cobalt ignition switch fiasco.
For the sake of perspective, translated to US population, this total recall figure would equal a car for each resident of New Hampshire, Rhode Island, Montana, Delaware, South Dakota, Alaska, North Dakota, the District of Columbia, Vermont and Wyoming. Combined. Here's how it all breaks down:
7,610,862 vehicles in North America being recalled for unintended ignition key rotation. 6,805,679 are in the United States.

Cadillac releases updated 2015 CTS

Cadillac is in the process of applying the new wreathless emblem across its range one model at a time, but rather than simply slap the new logo on the existing models, it's taking the opportunity to roll out some revisions as well. First came the ATS coupe, followed by the updated ATS sedan, and now the flagship brand in the General Motors portfolio has quietly announced some revisions for the CTS sedan as well.
For the 2015 model year, the CTS - which was just introduced last year - gets a revised front end with that wreathless crest but also a new chrome grille with active aero elements on standard models and a black-chrome grille on the Vsport. The revised grille is flanked by new headlights, but behind them the engine lineup carries over: a 2.0-liter turbo four with 272 horsepower, a 3.6-liter V6 with 321 hp or - in the Vsport performance model - a 3.6-liter twin-turbo V6 with 420 hp that's still the most powerful V6 GM has ever made. All engines are mated to an eight-speed automatic transmission (ditching the six-speed auto on previous versions) and (apart from the RWD Vsport) can be had in rear- or all-wheel-drive flavors.
Cadillac has also given the updated CTS some new electronics (including inductive smartphone charging, onboard wifi, and more advanced parking and lane assist systems) as well as new wheels, trims and color options, details on which you can read in the press release below.

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.