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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.

Despite strong profits, GM still fighting flat market share

Looking at the progress General Motors has made since it entered bankruptcy, it's easy to forget that the company still has a long way to go before it's the juggernaut it once was. A recent report from Reuters points out that, while GM is making money, it isn't making any gains in terms of US market share. Quite the opposite, really. Consider this factoid: In 1963, nearly half of the cars sold in the United States were from Chevrolet, Cadillac, Buick, GMC or Pontiac. Now, the company's US market share is stagnant at 17.9 percent. That same number is half of just Chevy's 1963 market share. This is all despite GM going on a binge replacing or updating its models. "Market share increases are not instantaneous," Mark Reuss told Reuters at the 2014 Detroit Auto Show. "We've got a lot of baggage. Don't underestimate what people though of us, or these brands, through these hardships and 30 years." The reasons for the stagnant market share are numerous. Reuters points out that retooling of factories and a focus on limiting incentives are both good things for profit, but not necessarily for market share. There's also the troubling turnover of the brand's marketing department. These issues don't change the fact that Chevrolet has lost 1.4 percent of its market share in two years, and that Cadillac - arguably GM's most improved brand overall - has lost 1.2 percent in the same period. Part of that can be blamed on GM's avoidance of fleet sales in favor of more profitable customer sales. "Our focus has really been on retail and that's where we've got the growth," said Alan Batey, GM's interim global marketing boss. "We want to grow GM and that means growing market share and profits, but it's not at all costs," Reuss said. News Source: ReutersImage Credit: paul bica - Flickr CC 2.0 Earnings/Financials Buick Cadillac GM GMC sales profits

Junkyard Gem: 2006 Buick Lucerne CXL

When The General's Buick Division axed the LeSabre and Park Avenue names in 2005 (after 46 and 30 years, respectively, though the Park Avenue returned a few years later in China), the replacement top-of-the-line Buick sedan became the new Lucerne. It wasn't the Buick with the biggest price tag that year— those honors went to the Terraza minivan and Rainier SUV— but it became the flag-bearer for a bloodline of cushy, prestigious Buick sedans that stretched all the way back to the early days of the American auto industry. Lucerne sales for the 2006 and 2007 model years went pretty well, and now enough time has passed that some of these cars are showing up in the self-service car boneyards I frequent. Here's a first-year example with the optional Northstar V8 engine, found in a Northern California yard last summer. Plenty of American cars have been named after cities in Italy, France, and Spain, but the Lucerne is the only one I can think of that bears the name of a Swiss city (to be fair, the entire Chevrolet Division is named after a Swiss man, so Switzerland didn't really get shortchanged by The General in the naming department). CXL was the Lucerne's mid-grade trim level, sandwiched between the CX and CSX. The high-zoot Lucerne CSX got the 4.6-liter Northstar as standard equipment, but this quad-cam V8 and its 279 horses cost extra on the CXL. The base engine for the CX and CXL was the good old 3.8-liter pushrod Buick V6, rated at 197 horsepower. No US-market 2006 Buick could be purchased new with a manual transmission; this car has a four-speed automatic. In a Buick tradition stretching back to the late 1940s, this car boasts flashy "Ventiports" on the fenders. In past years, the number of ports on each side designated the car's intended swank level; starting with the Lucerne, they indicated the number of engine cylinders. So, when you're crawling around your local Ewe Pullet and looking for Northstars, seek out the Lucernes with the four-hole Ventiports. "Leather-appointed" power bucket seats and "wood-toned" trim were standard on the CXL, as well as an MP3-capable CD player with six speakers. By 2006, most American vehicle shoppers seeking something big and luxurious chose trucks and truck-like machines, but the market still supported quite a few sedan models such as the Lucerne. Most US-market GM vehicles got these little square "Mark of Excellence" fender badges during the late 2000s.