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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.

The 10 car brands cheapest to maintain over 10 years

Buying a car can be fun and bring a lot of freedom, but things can go sideways when it comes time for repairs. Some car brands are better than others, however, and Consumer Reports recently ranked the least- and most-expensive brands for owners to repair. There are few surprises on this list, but the cheapest new car and the runner-up might come as a shock. Tesla and Buick were the cheapest new car brands to maintain and repair over 10 years, followed by Toyota, Lincoln, and Ford. 10 car brands cheapest to maintain over the next 10 years: Tesla: $4,035 Buick: $4,900 Toyota: $4,900 Lincoln: $5,040 Ford: $5,400 Chevrolet: $5,550 Hyundai: $5,640 Nissan: $5,700 Mazda: $5,800 Honda: $5,850 Consumer Reports noted that maintenance costs for some brands can look deceiving, as many offer free maintenance for a period after the purchase. New-car warranties also play a role, with the powertrain coverage spanning four or five years and 50,000 or 60,000 miles, depending on the company. It's also worth noting that Tesla only sells EVs, which don't require engine air filters, oil changes, and some other routine maintenance, lowering their average costs. Related: Cheapest electric cars Cheapest SUVs The most expensive brands to maintain might not come as a surprise, but the costs associated with owning them might. Land Rover was the worst, at $19,250 over 10 years, while Porsche came in second at $14,090. Mercedes-Benz’s average costs were $10,525 and AudiÂ’s $9,890. While this suggests that these brands need more frequent repairs over the 10-year period, it also points to higher labor and parts costs for the European automakers. If you own one of the more expensive brands to maintain and youÂ’re worrying as you read this, there are a few things you can do to prolong your vehicleÂ’s life and minimize unnecessary maintenance costs. The first is to follow the automakerÂ’s suggested maintenance periods, changing your oil, rotating tires, and doing all the “boring” stuff before it becomes a problem. ItÂ’s also a good idea to take care with the way you drive, avoiding potholes, accelerating gently, and trying not to abuse your brakes. Finally, donÂ’t modify your vehicle. Car companies spend billions on research and development, and most know better about how a vehicle is meant to operate than you do in your garage with third-party parts. Buick Tesla Auto Repair Driving Maintenance Ownership Consumer Reports

Opel Insignia wagon would make a mighty fine Buick Regal

Once again, the Buick Regal's European stablemate will be getting a long-roof iteration, and our spy photographers have caught it out testing. Normally we wouldn't be overly concerned about the new Opel Insignia wagon, but considering the rumors surrounding a Regal wagon, we have reason to pay attention. Like the next-generation Insignia sedan that we've previously seen, this wagon adopts a much longer and wider look compared with the current model. The nose is also noticeably more upright than the gently sloping iteration of its predecessor. These changes are accompanied by more slender lights and a generally more broad-shouldered look. It's difficult to discern much else, though. As for the odds of this wagon appearing in the States, they look decent, but far from guaranteed. The next Regal sedan will probably continue as a rebadged Insignia, and may be built in Germany. Rumors of a wagon have persisted, supported by word of focus group testing with other wagons and the registration of a trademark for "Tourx." If Opel produces another high-riding, plastic-clad Country Tourer model, we could see it come here with the Tourx name to challenge the Subaru Outback, Audi Allroad, Volvo Cross Country models and, most recently, the Mercedes E-Class All-Terrain. It would also provide the company with another crossover-esque model for little extra development cost. We've also heard a report that a Regal wagon of some sort was confirmed at a dealer meeting. Related Video: