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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 to add 1,200 workers at 2 Michigan factories

DETROIT — General Motors is adding 1,200 jobs at two Michigan factories to build midsize SUVs and two new luxury sedans. GM said Friday that its Lansing Delta Township plant will get a third shift and 800 more workers to build the Chevrolet Traverse and Buick Enclave SUVs, which have three rows of seats. The Lansing Grand River plant will get a second shift and 400 more workers to build two new Cadillac sedans, the CT4 and CT5. Employees laid off at other GM factories will fill the new jobs first, then workers will be added, GM spokesman Dan Flores said. The company has not determined yet how many new people will be needed, he said. Both additional shifts will start working sometime between April and June, the company said. Lansing Delta Township now employs about 2,500 salaried and blue-collar workers, while the Grand River plant has 1,400. GM sold more than 147,000 Traverse SUVs in the U.S. last year, a 0.4% increase from 2018. Enclave sales were up 3% to just over 51,000, according to Autodata Corp. Related Video:

Cadillac V-Series Academy comes to Las Vegas [w/video]

General Motors has added another high-speed education course to the curriculum at the Spring Mountain Motorsports Ranch outside of Las Vegas, Nevada. The desert track already hosts the Ron Fellows Performance Driving School with Chevrolet Corvettes, including the ZR1, and they've just added the Cadillac V-Series Academy.
Open now, the one- and two-day performance driving school teaches "the finer points of high performance driving" using the 556-horspower instructional aids known as the CTS-V sedan, coupe and wagon. This is different than than using the CTS-V at the Monticello Motor Club on the east coast - that's part of a sponsorship deal that Cadillac has with the track. The driving course at the Motorsports Ranch is its own program that was developed by Fellows, and we have no reason to think the Cadillac edition won't be just as thorough and enjoyable as the one with Corvettes.
Unlike the 'Vette edition, however, it doesn't appear that you get an invitation to the program if you buy a CTS-V model. Classes are capped at 12 participants and run $1,295 for a single day, $2,295 for two days. There are a video and a press release below with more info.