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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 Blackhawk concept headed to auction block again

While the collector car auction market is often criticized for inflating the price of vintage models out of the realm of affordability for many buyers, these sales do give us an opportunity to look back on some of the beautiful, rare designs of the past. Just take a glance at this Buick Blackhawk concept with a shape right out of the '40s or '50s. Despite the heritage styling, it was pieced together from older pieces for Buick to celebrate itself in the early 2000s With styling inspiration from the classic Buick Y-Job concept car, the Blackhawk mixes actual vintage components to create its curvaceous shape. However, the power retractable top is thoroughly modern being made from carbon fiber and stows in the deck lid when the roof needs to go down. After so much work on the outside, the Buick has something equally surprising under the hood. It's a 1970 455-cubic-inch (7.5-liter) V8 GS Stage III V8 with a claimed 463 horsepower and 510 pound-feet of torque, and for easy cruising the mill is linked to a four-speed automatic. Built in-house by Buick, the Blackhawk was once part of the General Motors Heritage Fleet, but the automaker sold it off in 2009 at the Barrett-Jackson auction in Scottsdale, AZ, along with many other members of the collection. The concept went for $522,500 after the buyer's premium, according to the auctioneers. Now, it's crossing the block again with no reserve as part of RM Auctions sale of the Andrews Collection on May 2, 2015, in Fort Worth, TX. The 75-car auction also includes highlights like one of seven 1962 Ferrari 400 Superamerica SWB Cabriolet models bodied by Pininfarina. Featured Gallery Buick Blackhawk Concept News Source: RM Auctions, Barrett-Jackson AuctionsImage Credit: Darin Schnabel Courtesy of RM Auctions Design/Style Buick Auctions Convertible Concept Cars

Buick teases the next-gen LaCrosse

Buick continues to play coy about the next-generation LaCrosse, but the latest teaser hints at a swoopy profile for the upcoming sedan. While mostly just a silhouette, the teaser does provide a glimpse of the flowing roof and upward crease around the rear fenders – especially handsome touches. The rest of the LaCrosse remains a mystery. The only other part that we've seen is the Avenir-inspired grille, which features a more angular surround and chrome wings jutting from emblem in the center. Styling aside, the brand claims that the sedan is now more engaging behind the wheel thanks to a stronger, lighter chassis and five-link rear suspension. Powertrain rumors are rather vague but suggest the 3.6-liter V6 will be available when the model arrives at dealers in 2016. One thing we know for certain about the LaCrosse is that it debuts at the Los Angeles Auto Show in November. That only leaves a few more weeks for Buick to keep this mystery going. Related Video: