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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.

GM's MPG overstatement could affect 2 million vehicles

Late last week, GM admitted that three of its large SUVs fuel economy window stickers did not match their actual efficiency ratings, and so the vehicles couldn't be sold. The stickers on the 2016 Chevy Traverse, GMC Acadia, and Buick Enclave said their ratings were one to two miles per gallon better than they should have been. Officially, the number of affected vehicles sits at about 60,000. But Consumer Reports makes a good point: what's up with all of the previous model year SUVs that are basically the same vehicle? To wit: the 2016 model year vehicles are not substantially different than the 2015 or the 2014, or even going all the way back to 2007. On the EPA's fuel economy website, all of these older models will "have better stated fuel economy numbers than the new vehicles in GM's dealerships," Consumer Reports noted. CR's best point, and the one that makes the 60,000 number potentially grow to 2 million if all of the vehicles built on this platform are affected, is that "[i]t seems unlikely that the company would change the powertrain on these carryover models so late in their model cycles in a way that would cause a dramatic, negative impact on fuel economy." GM says that earlier model year SUVs are not affected and the EPA did not respond to CR's question about the potential for more discrepancies. We've seen automakers reverse course before, so if GM has to come out with a mea culpa soon, don't be surprised. GM is rushing corrected stickers to dealers so that the SUVs can be sold again, but a fix for the already-sold vehicles could be trickier to solve. Related Video: Related Gallery 2013 GMC Acadia View 16 Photos News Source: Consumer Reports Government/Legal Green Buick Chevrolet GMC Fuel Efficiency mpg gmc acadia chevy traverse

GM is quietly slashing prices on base models

While General Motors' fourth quarter financial figures haven't yet been released, the automaker seems to be weathering a potentially rocky time well, even beating third-quarter projections last year. To keep the climb going, the company is launching new base trims for several popular models that make them cheaper than ever but with tight dealer margins. The new entry-level trims are the Chevrolet Cruze L, Equinox L, GMC Terrain SL and Buick LaCrosse 1SV. Buyers lose some content by picking them, but the prices are slashed. According to Cars Direct, the biggest savings are on the LaCrosse, where customers pay $31,065, plus $925 destination, $2,570 less than the previous base 1SB trim but must accept things like 17-inch wheels and no cargo net in the back. If you're wondering how Buick can remove only a little equipment but cut the price so much, it's because the company also slashed dealer margins. According to Cars Direct, the difference between the invoice and MSRP for the LaCrosse 1SV is only around $150, compared to around $1,350 before. The disparity is even greater for the Cruze with an $81 difference in the prices, compared to about $600 for the LS version. Showrooms are expected to keep very low stocks of these trims, though. "Dealers use such vehicles to get people in the door, but they do not generally want to do high volumes of these strippers. The margins are next to nothing; they don't make much money off these cars," said Ed Kim, Vice President of Industry Analysis for AutoPacific to Autoblog. Dealers are also expected to advertise that these new base trims undercut major competitors. For example, the Cruze L rings up for about $2,320 less than a Honda Civic LX, according to Cars Direct. One potential drawback for buyers is that these models might not be eligible for incentives. While the attractive prices might get customers into dealers, folks may not actually end up driving home with these entry-level models. Kim indicated base trims also make up a small portion of the sales mix. "Consumers aren't asking for stripped out vehicles, even at the low end of the marketplace," he said. Featured Gallery 2015 Chevrolet Cruze View 9 Photos News Source: Cars DirectImage Credit: Chevrolet Buick Chevrolet GM GMC Car Buying Car Dealers Crossover Sedan gmc terrain cheap cars