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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.

Watch this phantom Buick drive itself down the highway in a snow storm

Years ago, General Motors used Buick cars to test out the idea of a "smart highway" concept. More recently, GM has been talking up its award-winning Super Cruise semi-autonomous technology that will roll out with Cadillac and make its way to Buick. The LeSabre in the video above has nothing to do with any of that.
On Interstate 15 in Utah, a man driving this LeSabre got into an accident that rearranged the front end and set the horn on permanent blare. At the time of writing this, no one is sure what happened next, but the man ended up sitting in the snow in the highway median while his car carried on down the highway without him. Passing traffic stayed well to the right.
The 51-second video below provides a different take on our autonomous future. A local newscast on KUTV covered the story the evening of the incident, but the Utah Highway Patrol didn't have any update on the fate of the LeSabre. We'll take that to mean that Buick's take on Christine could still be out on the prowl... so watch out!

We want this Buick Regal wagon rumor to be true

The car we know in the US as the Buick Regal is sold as a Vauxhall/ Opel Insignia in Europe, where it's offered in four-door sedan, five-door liftback, and wagon body styles. Call it a case of wanting what we can't have, but we like the last two body styles a lot. Based on a report from a Buick/ GMC dealer meeting in Austin, one of them could be coming to the US soon. According to a poster identified as 97GreenRS on the forums at GM Inside News, GM showed dealers the 2018 Buick Enclave, Regal, and Regal GS, as well as the 2018 GMC Terrain, and then confirmed it would offer the Regal wagon here in the US. While that wouldn't normally be all that much to go on, we know Buick has been toying with the idea of a wagon for some time. A Regal-badged wagon was spotted way back in 2011. More recently, we reported on a trademark filing for "Tourx" and "Regal Tourx," which suggest a long roof (Tour) and all-wheel drive (x). If the Regal wagon arrives alongside the base sedan and GS as a 2018 model, we'd expect a debut within the next 15 or so months. That would place it right at the beginning of the 2017 auto show season, which starts next September in Frankfurt, Germany. With that in mind, it seems possible the new Regal would debut first as an Opel Insignia before appearing at a US show like Los Angeles or Detroit, although there's a lot of speculation going on there. We just want to see "Buick" and "wagon" in the same sentence again. Related Video: