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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 Avista concept is 'buildable', but not a priority

Buick could build the striking Avista concept that debuted at the Detroit Auto Show, though it's not a top priority, the brand's top executive said Tuesday in New York. "The reaction's been so great, we'll try to run the numbers and see if there's a business case," said Duncan Aldred, Buick vice president of sales, service, and marketing. Buick will show the Avista in red this week at the New York Auto Show as a followup to its Detroit debut. Buick actually built two prototypes, which are being used to promote the brand's performance potential at auto shows around the world this year. "It's very buildable," Aldred told reporters after the reveal of the reveal of the 2017 Encore small crossover before the New York Auto Show. "Ultimately, it comes down to priorities." He added, "We'd love to do it. We could do it, but [there's] lots of things we'd love to do... Nothing to confirm or deny." The Avista concept suggests a sports car with a twin-turbo V6 with 400 horsepower put to the rear wheels. The two-door followed another impressive Buick concept, the Avenir, which was four-door styling exercise from the 2015 Detroit show. Though the Avista remains on the minds of enthusiasts – helped in part by Buick – the priorities for the brand are crossovers. The Avista offers style, but the freshened Encore is the substance for Buick in New York, which along with the Envision, launches this year into the red-hot utility segment. The new Cascada convertible and redesigned LaCrosse also are joining Buick's lineup this year. While the Avista is doable, the brand clearly has other priorities ahead of it. Related Video:

Pre-owned bargain alert: Buick Regal

For the past couple of years, Buick has been very aggressive in promoting short-term low-mileage leasing. The plan was to get people in the door to experience the new Buick. Once they realized Buicks are now sleek and full of Euro Chic, people might want to buy one. It's debatable if that plan worked, but one thing is for sure: There's a massive amount of low-mileage Buick Regals out there. The price of Regals is all over the map due to lease returns and dealers aggressively discounting 2015 models to get rid of them. But at the $17,500–20,000 range there are a good number of 2013 to 2015 Regals with under 15k miles for sale. The Regal might come with 2.0L Turbo or 2.4L Hybrid. The Hybrid is a bit slow; stick with the Turbo and drive with the traction control off. They all come moderately equipped with leather, heated seats, alloy wheels, and dual-zone climate control. If you have a little more cash to spend, go for the 2012/2013 Regal GS, which is based on the Opel Insignia OPC. The Regal GS comes with 270 horsepower and 295 lb-ft from a turbo engine and a HiPerStrut suspension to reduce torque steer. They all come standard with Brembo brakes, navigation, sunroof, and premium sound system, in automatic or manual. Just make sure you budget money in your savings to replace the front tires. Trust me on this. You can purchase a Camry or Accord with some equipment for under $20,000 with a bit more miles and years than the Regal. But ultimately the Regal feels more premium, drives better, and is less boring. Make the right choice and buy something unique.Related Video: