1977 Cadillac Eldorado Biarritz on 2040-cars

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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.

GM laying off 510 amidst slow Cadillac, small car sales

General Motors is laying off about 510 workers from two factories beginning in January, and it could be months before the automaker needs some of that latent capacity to come back on line. A combination of poor sales and high dealer inventories are prompting the cutbacks, according to Automotive News.
The largest changes come at GM's Lansing Grand River plant, where the Cadillac ATS and CTS are made. An entire shift of about 350 workers is being laid off, but the automaker hopes to find positions for some of them at other nearby factories. The decision leaves just a single shift building vehicles there. According to Automotive News, the move is partially spurred by Johan de Nysschen's plan to make Cadillac a more exclusive brand.
The lost shift will likely return for production of the next-generation Chevrolet Camaro at the plant, according to the report, but GM isn't saying when that will be. A previous announcement from the Canadian Auto Workers union indicated that the Oshawa, Ontario, factory would lose the coupe in late 2015 or early 2016.

Autoblog Podcast #326

Easter Jeep Safari concepts, Shelby 1000, 2014 Cadillac CTS and Mercedes CLA45 AMG leaks
Episode #326 of the Autoblog Podcast is here, and this week, Dan Roth and Zach Bowman talk about this year's Easter Jeep Safari concepts, the 1,200-horsepower Shelby 1000 and leaked images of the 2014 Cadillac CTS and Mercedes-Benz CLA45 AMG. We wrap with your questions and emails, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Keep reading for our Q&A module for you to scroll through and follow along, too. Thanks for listening!
Autoblog Podcast #326: