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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.

2018 Buick Enclave slims down for spy shots

Most vehicles are refreshed every five years or so. New technology and styling is required to keep up with the latest trends. Although this cycle is common, there are some vehicles, like the Buick Enclave, that seem to stick around far past their expiration date. We now have spy shots of what appears to be the nine-year old Enclave's replacement. Although the vehicle in the photos is completely covered in camouflage, we can make out the new Buick family grill. There are a set of LED running lights up front and what appear to be a location for foglights toward the bottom. The camo covering is cut in places to allow gaps for sensors, presumably for parking and other driver aids. Out back, the rectangular taillights don't appear to be production ready. The whole rear, especially the glass, looks smaller than the outgoing model, though it is difficult to properly tell through the camouflage. The rear bumper has wide cuts for the dual exhaust pipes, and again the camo has cutouts for sensors. The side profile reveals the biggest change with the new Enclave. The current version shares a platform with the Chevrolet Traverse and the original GMC Acadia, some of the largest vehicles on the market. The all-new 2017 Acadia scaled down in order to compete against midsize crossovers and now has more in common with the smaller, Chinese-built Buick Envision. That doesn't mean the Enclave and Acadia are entirely separate. Both the Enclave and upcoming Traverse will ride on a stretched version of the Acadia platform. The general profile remains the same, but it's apparent that the vehicle in these photos is longer than the new GMC. Most other details are speculation. The Enclave will most likely arrive with GM's 3.6 liter V6. With the introduction of the Envision, the Enclave is expected to move upmarket to compete against the Acura MDX and Volvo XC90. Because of the slightly narrower shape, passenger seating is expected to fall to seven. The new crossover will probably lose a bit of weight with the redesign. The new Buick is expected to debut next year as a 2018 model. Look for the reveal of the Chevrolet Traverse replacement as well. Related Video: Featured Gallery Buick Enclave Spy Shots View 20 Photos Spy Photos Buick Crossover

J.D. Power: Mini, Lexus again offer most satisfying sales experience

JD Power has released its annual Sales Satisfaction Index Study, and once again Mini and Lexus have taken top honors. Overall, buyers are more satisfied with the auto-buying sales experience than they were last year, with those surveyed reporting an average score of 664 points on a 1,000-point scale. That's up from 648 in 2011. Dealer satisfaction also increased by five points over last year as well.
All told, Lexus brought home an index score of 737, which was high enough to put it atop the luxury brands for the second year in a row. JD Power says Infiniti came in second in that category with a score of 728 and Cadillac rounded out the podium with it's rating of 725. Speaking of Infiniti, that brand saw the single largest jump in sales satisfaction of any brand on the survey, popping up 52 index points over 2011.
Among mass-market brands, Mini ranked highest with a score of 712, followed closely by Buick with 706 and GMC farther down the line with 683. You can check out the full press release below for more information.