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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.

Cadillac to bolster CT sedans with XT crossovers

Cadillac is moving swiftly to change up its naming scheme. Barely over a week ago we received our first indication that it was considering a different name its the upcoming flagship sedan previously known as LTS. Then Cadillac not only revealed the model would be called CT6, but announced that it would set the stage with a massive overhaul of its model nomenclature. And now we have another piece of the puzzle.
According to Forbes, Cadillac will not only rename its sedans with the letters CT, but will realign its utility vehicles under the banner of XT - both to be followed by a number indicating its place in the lineup. The one exception will be the Escalade, whose nameplate has such a strong following that it would be foolish for Cadillac to cast it aside. That leaves only the SRX (pictured above), but makes room for a new crop of crossovers said to be in the works.
It's a similar approach which Cadillac's new boss Johan de Nysschen took in revising the naming scheme at Infiniti. While it's bound to ruffle some feathers and scratch some heads in the beginning - especially since the company's current flagship sedan is called XTS - it's equally sure to make sense of it all in the long run. All we need to know now is what Nysschen and his marketing chief Uwe Ellinghaus plan to call the coupes.

GM announces 6 recalls covering nearly 720k cars

General Motors has announced yet another sprawling recall campaign, with six separate elements covering 717,950 vehicles on US roads. At this point in 2014, it's starting to seem like there are more days with a GM recall than without. Perhaps most troubling about this latest volley, though, is that every vehicle is from the past few years, indicating that GM's quality woes may not be limited to pre-bankruptcy vehicles.
The largest element of this latest campaign covers 414,333 units, and includes the 2011 to 2012 Chevrolet Camaro, 2010 to 2012 Chevy Equinox, GMC Terrain and Cadillac SRX and the 2011 to 2012 Buick Regal and LaCrosse. Only vehicles with powered, height-adjustable seats are covered. In these particular cars and crossovers, the bolt that secures the height adjuster actuator may loosen of its own accord and in some cases fall out completely. If this happens, the seats will be able to move both up and down. GM claims the vehicles are safe to drive, provided drivers don't vertically adjust their seats. This particular issue has caused one crash and three injuries.
The largest element of this latest campaign covers 414,333 units, including the Chevrolet Camaro and Equinox, GMC Terrain, Cadillac SRX and the Buick Regal and LaCrosse.