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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.

Meet the mother-daughter team that's worked on almost every Chevy Volt

It's Mother's Day, and we're soft enough we love our mothers enough to share a new video from General Motors with you. In it, we meet Monique Watson (left) and Evetta Osbourne, a mother-daughter team that works at the Detroit-Hamtramck Assembly where GM makes the Chevy Volt (along with all of GM's other plug-in hybrids: the Opel Ampera, Holden Volt and Cadillac ELR). The two work side-by-side and have installed the lithium-ion battery pack on almost all of those vehicles - nearly 80,000 of them - since GM started making the pre-production Volts in 2009. In a prepared statement, Watson said that she likes working next to her mom, day in and day out, and they the two are totally in sync when it comes to putting the 400-pound, 16.5-kWh packs into the vehicle undersides. They two can also share stories throughout the day, and Watson said, "The arrangement has absolutely improved our relationship." Osborne started working at Detroit-Hamtramck in 1999, Watson since 2006. If you're driving a Volt today, you probably have them to thank for doing a bit of the work putting your car together. See a short video of them in action below. It's Always Mother's Day for Detroit-Hamtramck Duo Mother, daughter install lithium-ion battery pack in nearly all GM electric vehicles 2014-05-08 DETROIT – For Detroit resident Evetta Osborne, every day is Mother's Day. That's because she literally works side by side with her daughter, Monique Watson, at General Motors' Detroit-Hamtramck assembly plant. They have installed the lithium-ion battery pack on nearly every Chevrolet Volt, Opel Ampera, Holden Volt, and Cadillac ELR since production began. In fact, apart from vacation days and an occasional sick day, the mother-daughter duo has installed almost every battery pack since the Volt was in pre-production in 2009. The ELR launched earlier this year. All told – including Ampera – that's more than 80,000 electric vehicles. "We're a good team and our relationship is secondary when it comes to performing our jobs – but it's great to work alongside my daughter, said Osborne, a mother of five. Because the battery packs weigh more than 400 pounds each, automatic guided vehicles – robotic carts that use sensors to follow a path through the plant – deliver them just as the vehicle body structures glide into position overhead. The carts then lift the T-shaped packs, and Osborne and Watson guide them into the chassis and secure each one with 24 fasteners.

Cadillac and Buick boost GM's return to growth in China

BEIJING — General Motors on Monday said continued market recovery from the COVID-19 crisis helped its China vehicle sales grow 12% on year in July-September, marking the Detroit automaker's first Chinese quarterly sales growth in two years. The second-biggest foreign automaker in China by units — after Germany's Volkswagen AG — said on Monday it had delivered 771,400 vehicles in China in the third quarter. That followed a 5% fall in the second quarter, when parts of China were still emerging from virus-busting lockdown measures. GM has a Shanghai-based joint venture with SAIC making Buick, Chevrolet and Cadillac vehicles. It has another venture, SGMW, with SAIC and Guangxi Automobile Group, producing no-frills minivans and which has started manufacturing higher-end cars. Sales rose 26% for cars under its mass-market Buick brand in the third quarter versus the same period a year earlier, while those of premium brand Cadillac jumped 28%, GM said in a statement. Sales of its mass-market Chevrolet marque fell 20%. Sales of no-frills brand Wuling grew 26%, whereas those of mass-market Baojun vehicles tumbled 19%. "GM's compact models returned to four-cylinder engines and that helped sales growth," said LMC Automotive senior analyst Alan Kang, referring to an attempt to market cleaner but noisier three-cylinder versions. "Cadillac also has a more complete lineup this year." China's biggest automakers' association expects overall car sales to grow by double digits in July-September versus a year earlier. Makers such as Toyota, Honda and Geely saw sales jump in the just-finished quarter. GM has seen its China sales suffer in a crowded market and slowing economy. To revive its fortunes, it plans to have electric vehicles (EVs) make up over 40% of new models in the next five years in China, where the government promotes greener cars. The automaker's Wuling Hong Guang MINI EV, a micro two-door EV with a starting price of 28,800 yuan ($4,200), was China's biggest-selling EV in August. GM's sales fell 15% in 2019 from a year earlier to 3.09 million vehicles. The automaker delivered 3.65 million vehicles in 2018 and 4.04 million in 2017. Related Video: