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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 Regal, Hyundai Sonata

Toyota is ramping up production of an all-new 2018 Camry and spending over $1 billion – with a "b" – at its Georgetown, Ky., plant. That investment speaks to the popularity of midsize sedans, despite sales inroads made by crossovers. While Accord and Camry are givens in the segment, less attention is paid to Buick's Regal and Hyundai's Sonata. And if shopping for a midsize sedan with a $30,000 budget, you should pay attention. Both offer a compelling combination of attributes and can be well equipped for that price point. Finally, both are due for either a major redesign (Regal) or aggressive freshening (Sonata) in the 2018 model year. Both Buick and Hyundai will be offering incentives 2017s, but Hyundai's program is more aggressive, with up to $6,000 in savings (as this is written). BUICK REGAL: For those seeking exclusivity at well below an "exclusive" price, there is the Regal. Designed by GM's Opel as the Insignia, the version sold stateside keeps most of its Eurocentric nature. It doesn't pretend to be an Audi or BMW, but it provides something more German than Volkswagen's Germany-by-way-of-Tennessee Passat. A Regal, in all-wheel-drive 'Regal' trim, supplies you with a turbocharged 2.0 liter and 6-speed automatic transmission. Its 259 horsepower and 295 pound-feet of torque propel the 3,600-pound Regal with authority and respectable efficiency. Despite its relatively low curb weight, the Regal feels substantial, with a heavy feel behind the wheel and a quiet authority going down the road. Inside, you'll find an interesting mix of Old World and New Detroit, with informative gauges, a center stack that dominates the instrument panel, supportive buckets up front and a reasonably spacious rear seat. The Regal's interior volume is respectable (97 cubic feet inside, while the trunk has 14 cubic feet), but this remains a better environment for young families or empty nesters. Those with a lot of kids or stuff should shop Buick's about-to-be-redesigned Enclave or midsize Envision. For the 2017 model year, Apple CarPlay and Android Auto have been added. The Driver Confidence 1 package (optional) includes Forward Collision Alert, Lane Departure Warning, Lane Change Alert, Side Blind Zone Alert, Rear Cross-Traffic Alert, Following Distance Indicator and memory seats. Driver Confidence 2 has Collision Preparation with Collision Mitigation Braking and Full Speed Range Adaptive Cruise Control. It's all good stuff.

GM claims it's first to sell million 30+ mpg vehicles

As we continue to put together all the data for the year-end edition of By The Numbers, General Motors has announced that it sold more than a million vehicles in the US last year that achieved at least 30 miles per gallon on the highway. More impressively, GM managed this feat using multiple strategies including small vehicle size, turbocharged engines and hybrid or plug-in technologies across four brands (Buick, Cadillac, Chevrolet and GMC) accounting for 13 separate models. This number will grow even more in 2013 thanks to cars like the all-electric Spark, the diesel Cruze, the range-extended Cadillac ELR and the Buick Encore compact CUV.
GM's small car sales were up 39 percent last year helping to attain this million-sales mark for 30-mpg models, and almost 40 percent of all GM sales consisted of cars with fuel-efficient I4 engines. In regards to more advanced means of improving fuel economy, GM says that it plans on having 500,000 vehicles with "some form of electrification" on the road by 2017.
Scroll down for the full list of GM's million 30+ mpg cars as well as an informative press release.