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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.

It looks like Buick is working on a new Regal GS

When Buick revealed its Regal-badged version of the Opel Insignia/Holden Commodore sedan and wagon, it left out one significant model, the GS. The high-performance Regal was missing in action, but these new spy photos seem to indicate one is coming soon. It looks like it will be pretty subtle on the outside. Upon close examination, we can see that each side of the front bumper features a much larger grille than the normal Regal Sportback and TourX. The thick upper borders on the grilles also look like good places for some LED accent or fog lights. These larger grilles appear to be the only significant difference to the front, though. On the sides, there are slightly deeper side skirts than those on a standard Sportback, and the rear bumper looks to be lifted from the TourX, but without the wagon's aluminum cladding. One other indication that this is a high-performance Regal is the car's front braking equipment. We can make out a Cadillac logo on the front brake calipers, which shows that this isn't running standard Regal stoppers. As for what's under the hood, it's tough to say, but we don't think it will use a turbocharged four-cylinder as the previous generation did. Instead, we think it may be using a V6. That's a hard maybe. The base Regal's turbo four makes as much power as the old GS, and although Buick could crank up the boost for more power, it could also make use of the V6 it will offer overseas. In the mechanically identical Commodore, a 308-horsepower V6 will be available along with a 9-speed automatic and the same type of all-wheel-drive system as the Ford Focus RS. This option would make the upcoming GS more powerful than the old one, and the new standard model, plus offer all-wheel drive. We would like to see even more power than 308, since the top-dog previous-generation Insignia OPC had a 325-horsepower V6. Related Video: Featured Gallery Buick Regal GS Spy Shots View 15 Photos Image Credit: Brian Williams Spy Photos Buick Hatchback Luxury Performance Sedan buick regal gs

The new Opel Insignia might be a great Buick, but it's a sad Holden Commodore

Since the first shots of the uncovered Opel Insignia hit our inboxes, we've been filled with excitement for the new sedan. It looks great, it should come to America with little to no visual changes as the Buick Regal, and we might even get a wagon version. Unfortunately, there's a lead lining to this silver cloud, and it comes to us from Down Under. You see, the Opel Insignia is also undergoing a re-badging job in Australia to become the new Holden Commodore. It's replacing the beloved rear-drive Commodore (with an optional V8 and ultra-high performance HSV variants) with a front-drive-based platform offering four- or six-cylinder engines. This is depressing news considering the Zeta-platform underpinning the Commodore VF spawned the Pontiac G8, Chevrolet SS, and fifth-generation Camaro. Knowing this was going to happen doesn't help much either. What makes it all worse is that the new Commodore doesn't have a shred of unique styling in the bodywork. That's not an exaggeration. A new grille with a Holden lion badge instead of an Opel lightning bolt badge is the only change. See for yourself in the Insignia gallery below. Not only did GM erase a unique Australian model, it didn't even allow the brand to give the car a distinct shape. It's sort of like when Ford planned to replace the Mustang with the Mazda-derived Probe. The Probe wasn't that bad for the time, but it was no Mustang. At least in that case the Mustang survived. View 12 Photos Before we get ourselves too down, we should mention that there are reasons to be hopeful for the future. For one thing, the new all-wheel-drive Commodore/Insignias will come with a version of the GKN-developed rear differential found in the Focus RS and Range Rover Evoque, which is pretty neat on its own. And Opel/Vauxhall have always had wild performance versions of the Insignia and its Vectra predecessor. The last one made 325-horsepower and had all-wheel-drive. A new one would likely produce much more, since one of the available V6s makes 308 horsepower. Then imagine all of that extra hypothetical horsepower hooked up to the all-wheel-drive system that introduced us to "drift mode." Not only that, but rear-drive Holdens may not be completely dead yet. A Belgian man announced his intention to buy an old Holden factory along with the tooling and rights for the car once it was discontinued. His plan is to continue producing the old model after Holden is done with it.