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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 Envision interior just as nice as its exterior

GM China loosed more photos of the all-new 2021 Buick Envision, this time of the interior. We are happy to report that the cabin design is just as pleasing to the eye as the exterior. When the 2021 model shows up for the reunion with its earlier model-year siblings, no one will recognize it. The modestly dated interior of the current crossover with its too-small infotainment screen and Rorschach-blot button placement is all gone. The gaudy curves and textures on the current instrument panel give way to a simple, split-level, bi-color form. What's more, the IP subtly carves out distinct driver and passenger spaces, a design trait normally reserved for sports cars. When Buick and GMC design boss Helen Emsley said the coming Envision would possess "striking styling designed to combine the expressiveness of a car with the practicality of an SUV,” she wasn't lying. The new steering wheel picks up more substantial spokes decorated with linear buttons instead of the circular pads, and its center cap is wider and no longer reminiscent of an alien face. The dash's dark portion up top houses a 10-inch infotainment screen canted at an 18-degree angle for the driver's ease-of-use. Air vents accentuate the break between the top and bottom of the instrument panel. Beneath the center vents, in the cabin-colored portion of the dash, are a slick set of climate controls. The pushbutton gear selectors along the left side of the center tunnel come from the China-market Enclave. And even the cupholders are handsome. The Envision Avenir gets a few exterior changes like a mesh grille and nicer wheels to set itself apart, the interior wearing Ivory White and Jazz Black hues and diamond-stitched seats. We might prefer the interior with peanut-butter brown and black even more. And suddenly, the Cadillac XT4 could have a problem; the Buick and the Cadillac share the E2 platform, but one of them — in photos, at least — is incontestably more fetching. As for tech, expect Android Auto and Apple CarPlay standard, and driver safety features such as automatic emergency braking with pedestrian detection, lane-keep assist, and the automaker's safety alert seat. Regular conveniences will include space for five, nearly two dozen storage cubbies, and an available giant panoramic moonroof. The only engine we've heard tell of so far is a 2.0-liter turbocharged unit, expected to be a carryover mill with 252 horsepower and 295 pound-feet of torque.

Best and Worst GM Cars

Oh yes, because we just love receiving angry letters from devoted Pontiac Grand Am enthusiasts, we have decided to go there. Based on a heated group Slack conversation, the topic came up about the best and worst GM cars. First of all time, and then those currently on sale, and then just mostly a rambling discussion of Oldsmobiles our parents and grandparents owned (or engineered). Eventually, three of us made the video above. Like it? Maybe we can make more. Many awesome GM cars are definitely going unmentioned here, so please let us know your bests and worsts in the comments below. Mostly, it's important to note that this post largely exists as a vehicle for delivering the above video that dives far deeper into GM's greatest hits and biggest flops, specifically those from the 1980s and 1990s. What you'll find below is a collection of our editors identifying a best current and best-of-all-time choice, plus a worst current and worst-of-all-time choice. Comprehensive it is not, but again, comments. -Senior Editor James Riswick Best Current GM Vehicle Chevrolet Corvette We were flying by the seats of our pants a bit in this first outing and my notes were similarly extemporaneous. When it came time to tie it all together on camera, I failed spectacularly. Thank the maker for text, because this gives me the opportunity to perhaps slightly better explain my convoluted reasoning. I chose the C8 Corvette because it's simply overwhelmingly good, and it's merely the baseline from which this generation of Corvette will be expanded.  While the Cadillac CT5-V Blackwing (more on that in a minute) is an amazing snapshot of GM's current performance standing and its little sibling so enraptured me that I went out and bought one, their existence is fleeting. Corvette will live on; forced-induction Cadillac sport sedans, not so much. So while all three are amazing machines when viewed in a vacuum, the Corvette stands above them as both a reflection of GM's current performance credentials and a signpost of what is to come. So, given the choice between the C8 and the 5V-Blackwing right now, I'd choose the C8. In 10 years, when the Blackwing is no longer in production and Corvette is in its 9th generation? Well, that might be a different story. Now, just pretend I said something even remotely that coherent when we get to the part of the video where I try to make an argument for the 5-V Blackwing as best GM car I've ever driven. Or just laugh at me while I ramble incoherently.