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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.

Buick working on Encore refresh

It's been three years now since the model we know as the Buick Encore (sold overseas as the Vauxhall/Opel Mokka) first hit the scene. That makes it about due for a bit of a facelift, and judging from these latest spy shots, that's precisely what General Motors seems to be up to. The nose of this prototype (intriguingly wearing Buick badges but German plates) is all covered up, so it's hard to tell what Buick and its European counterparts have in store for the front-end restyling, but the fact that they've covered it so extensively tells us that somethings afoot. The tail should also get new lights and bumper as well. You can fully expect GM to take the opportunity to refresh the cabin while it's at it with tweaked ergonomics and new equipment. Meanwhile our sources tell us the 1.0-liter inline-three from the new Corsa could find its way under the Opel/Vauxhall's hood to join the current lineup of four-pots, but it's too early to say whether that engine might find its way across the pond to the Buick version as well.

Buick teases electric concept crossover for China

Buick released a teaser image of a new all- electric concept SUV it's calling the Enspire. It'll bow at Buick Brand Night on April 17 in Wuzhen, Zhejiang, and be on display to the public at the Beijing auto show later in the month. Buick says only that the Enspire "leverages GM's global resources and is an exploration of design and new technologies. It is the brand's latest example of innovation and application of future electric smart mobility." The darkened, right rear three-quarter shot shows a rounded rear fascia, a narrow tail lamp that stretches the length of the tailgate and a third brake light on the roof spoiler. While this concept is clearly aimed at China, GM Authority notes that General Motors previously filed to trademark the "Enspire" name in the U.S. in 2015. GM CEO Mary Barra outlined the company's electrification plans for investors in November and included a slide of an unbadged crossover under the title "Leveraging existing BEV platform to expand in near term," which some are speculating could be this Enspire concept. It also suggests that Buick could be developing a vehicle based on the Chevrolet Bolt platform. GM plans to l aunch 20 new EVs by 2023, targeting 1 million electric-vehicle sales by 2026. Buick is GM's best-selling brand in China, comprising about 1.2 million vehicles sold in 2017. Buick last year showed off the Velite 5, an extended-range hybrid based on the Chevrolet Volt, as a production car for China. Related Video: