1978 Buick Riviera on 2040-cars

Auto blog

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.

NHTSA may greatly expand GM airbag recall

The National Highway Traffic Safety Administration is pondering whether to dramatically upscale a pair of airbag recalls on General Motors vehicles. The two existing campaigns, one launched in the fall of 2012 and the other in January of this year covered just 6,845 vehicles, but the government agency is considering whether to boost the recall to around 400,000 units.
The existing recalls involve the the closely related 2012 Buick Verano (shown) and Chevrolet Cruze sedans, along with Sonic and Camaro models. The root of the problem is a shorting bar in the inflator module of the steering-wheel-mounted airbag that may contact the primary state airbag terminal, a condition that could prevent deployment in an accident. Dealer technicians have been replacing the steering wheel airbag coils to fix the issue.
According to a post on NHTSA's website, the root cause, said to be a production issue, may not have been completely isolated - particularly for the second recall, which was for the Camaro. According to Automotive News, GM says it is cooperating with the government investigation, but won't say whether or not it knows the true origin of the problem.

Opel readying Adam model with SUV cues

The Opel Adam, the microcar of General Motors' European subsidiary, has seen its sales cool significantly since it first hit the market in the United Kingdom and Europe, but a push is reportedly under way that just might be enough to get the stylish, little car moving again.
Using the Opel Adam Rocks Concept as a template, Opel will ruggedize the Adam, so that it might compete with the growing herd of city cars that sport SUV styling, like the Volkswagen Cross Up and Fiat Panda 4x4, according to a report from Automotive News Europe. Sporting a bumped-up ride height and tougher body work, it's a dedicated soft-roader, but will freshen the Adam's lineup and, hopefully, broaden its customer appeal.
The Adam Rocks, according to IHS Automotive analyst Ian Fletcher, should also make some more coin for GM's struggling European arm. "Automakers are happy to meet demand for SUV and crossovers as the customer pays a premium," Fletcher told ANE. And although the Rocks might have been planned from the start as a production vehicle, the timing, with the Adam's sales slowdown, doesn't seem like a coincidence.