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2018 Buick Enclave: How engineers made it larger, lighter, more sophisticated

Buick used the unveiling of the 2018 Enclave at the New York Auto Show to introduce its new range-topping Avenir sub-brand to the world. With fancier interior finishes and exterior details, it's Buick's latest effort to make itself a proper luxury brand (or perhaps re-establish itself as such). However, lost in the Avenir song and dance is the fact that the 2018 Buick Enclave is a (very) long-awaited all-new model regardless of the trim level one selects. Like the Chevrolet Traverse upon which it is based, the new Enclave is bigger than the vehicle it replaces but considerably lighter, by about 400 pounds. "We told every engineer, 'get your job done, but then take the weight out,'" said engineer Rick Spina as we hovered next to his larger yet lighter creation. His team therefore set about taking a little bit of weight out from just about everywhere, from using additional aluminum in the suspension to varying the thickness of the frame (thicker in places that needed to be stronger, thinner and therefore lighter in places that didn't). Only about 100 pounds came out of the body with the rest coming from elsewhere. Not only will the reduced weight improve fuel economy (Buick-estimated at 19 mpg combined with FWD versus 18 for the 2017 model) and presumably the old Enclave's rather ponderous handling, but it should only make things easier for the new powertrain: General Motors' now-familiar 3.6-liter V6 and its latest nine-speed automatic. With 302 horsepower and 260 pound-feet of torque, Buick says the new engine will need 7.2 seconds to reach 60 mph with FWD or 7.5 seconds with AWD. That's a second quicker than before. Besides acceleration, towing is also bumped up by 500 pounds to 5,000. For those models with all-wheel drive, the Enclave has the same basic system featured on range-topping versions of the Buick LaCrosse. Besides power being sent front and rear, it can also differ from right to left in the back, although Spina is quick to point out that capability is for traction-enhancing purposes rather than sporty, handling-enhancing torque-vectoring ones. Buick owners already appreciated the Enclave for its quietness so the engineers decided to take it that much further. This included altering the exhaust, improving body sealing (there are triple door seals), including active sound deadening and utilizing advanced materials that absorb sound as opposed to simply being thick, dense and heavy enough to keep it out.

5 reasons why GM is cutting jobs, closing plants in a healthy economy

DETROIT — Even though unemployment is low, the economy is growing and U.S. auto sales are near historic highs, General Motors is cutting thousands of jobs in a major restructuring aimed at generating cash to spend on innovation. It's the new reality for automakers that are faced with the present cost of designing gas-powered cars and trucks that appeal to buyers now while at the same time preparing for a future world of electric and autonomous vehicles. GM announced Monday that it will cut as many as 14,000 workers in North America and put five plants up for possible closure as it abandons many of its car models and restructures to focus more on autonomous and electric vehicles. The reductions could amount to as much as 8 percent of GM's global workforce of 180,000 employees. The cuts mark GM's first major downsizing since shedding thousands of jobs in the Great Recession. The company also said it will stop operating two additional factories outside North America by the end of next year. The move to make GM get leaner before the next downturn likely will be followed by Ford Motor Co., which also has struggled to keep one foot in the present and another in an ambiguous future of new mobility. Ford has been slower to react, but says it will lay off an unspecified number of white-collar workers as it exits much of the car market in favor of trucks and SUVs, some of them powered by batteries. Here's a rundown of the reasons behind the cuts: Coding, not combustion CEO Mary Barra said as cars and trucks become more complex, GM will need more computer coders but fewer engineers who work on internal combustion engines. "The vehicle has become much more software-oriented" with millions of lines of code, she said. "We still need many technical resources in the company." Shedding sedans The restructuring also reflects changing North American auto markets as manufacturers continue to shift away from cars toward SUVs and trucks. In October, almost 65 percent of new vehicles sold in the U.S. were trucks or SUVs. That figure was about 50 percent cars just five years ago. GM is shedding cars largely because it doesn't make money on them, Citi analyst Itay Michaeli wrote in a note to investors. "We estimate sedans operate at a significant loss, hence the need for classic restructuring," he wrote. The reduction includes about 8,000 white-collar employees, or 15 percent of GM's North American white-collar workforce. Some will take buyouts while others will be laid off.

GM recalling 316k vehicles due to headlamp faults

General Motors has announced a recall covering 316,357 vehicles globally, due to the possibility of sporadic or permanent failure of the low-beam headlamps. 273,182 of these vehicles are in the United States, while the remaining affected units are in Canada, Mexico, and elsewhere. This recall includes the 2006-09 Buick LaCrosse (pictured above), 2006-07 Chevy TrailBlazer and TrailBlazer EXT, 2006-07 GMC Envoy and 2006 GMC Envoy XL, 2006-07 Buick Rainier, 2006-08 Saab 9-7X, and 2006-08 Isuzu Ascender. In an email sent to Autoblog, General Motors explains that if the headlamp driver modules are not functioning correctly, "the low-beam headlamps and daytime running lamps could intermittently or permanently fail to illuminate." GM states that this problem does not affect things like high-beams, turn signals, marker lamps, or foglamps. As of this writing, GM states it "has not been able to confirm whether the HDMs in these vehicles caused any vehicle accidents." The National Highway Traffic Safety Administration has been notified, but the recall has not yet posted to the government agency's website. Scroll down to read the full details in GM's email. General Motors is recalling 273,182 Buick LaCrosse sedans and Chevrolet, GMC, Buick, Saab and Isuzu midsize SUVs in the U.S. for possible intermittent or permanent loss of low beam headlamps. Affected models are: 2006-2009 Buick LaCrosse sedans; 2006-2007 Chevrolet TrailBlazer and 2006 TrailBlazer EXT; 2006-2007 GMC Envoy and 2006 Envoy XL; 2006-2007 Buick Rainier; 2006-2008 Saab 9-7X and 2006-2008 Isuzu Ascender midsize SUVs. If the headlamp driver modules is not operating correctly, the low-beam headlamps and daytime running lamps could intermittently or permanently fail to illuminate. This condition does not affect the high-beam headlamps, marker lamps, turn signals, or fog lamps. GM has not been able to confirm whether the HDMs in these vehicles caused any vehicle accidents. The total population, including the U.S., Canada, Mexico and exports from North America is 316,357. The NHTSA was sent the Part 573 information for this recall on November 25. It has not yet posted to the NHTSA website. Featured Gallery 2008 Buick LaCrosse CXS News Source: General Motors Recalls Buick Chevrolet GM GMC Isuzu Saab SUV Sedan chevy trailblazer buick rainier isuzu ascender