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Buick Avenir concept struts into Motown

We love auto show surprises, and Buick has already gifted us a sparkly package on the eve of the 2015 Detroit Auto Show. Dubbed Avenir, this four-door concept is said to signal the future of the Trishield brand by previewing a possible flagship sedan. Incorporating time-honored Buick design hallmarks like the sweep-spear profile, Ventiports, and even a subtle boattail rear-end, the four-place sedan is powered by a surprisingly real-world powertrain – namely a next-generation V6 with cylinder deactivation and stop/start, with the most interesting part of the driveline arguably being a "twin-clutch all-wheel-drive system" and a nine-speed automatic gearbox with paddle shifters. Make no mistake, this is a big car. At 204.5 inches long, it's longer than a standard-wheelbase Cadillac Escalade – a span that's emphasized by the car's long hood and waterfall grille – though it's not quite as wide. While clearly a showcar, the beautifully crafted interior looks largely produceable, including attributes like a next-generation 12-inch touchscreen infotainment system and 4G LTE wifi, but we suspect a production car would pick up a third rear seatbelt and give away some of its flowing contours that are said to have been "inspired by nature and sea waves receding on a beach." No word yet on whether there's actually a showroom future for a car like this – it could simply be an exercise designed to test the waters for a next-generation LaCrosse. After all, sedans aren't exactly popular concept fodder these days, especially as crossovers continue to eat into traditional sedan sales in many of the world's markets. However, China still loves the coddling rear seats of a proper four-door sedan (which in this case include silk and bamboo elements), and with a majority of Buick sales happening in the People's Republic, the Asian nation controls the destiny of this General Motors brand. Said another way? Anything is possible, especially with General Motors known to be working on a large flagship sedan for Cadillac already – the Avenir is reportedly based on the same Omega architecture that will underpin the forthcoming CT6. What do you think? Is this a promising direction for the resurgent Buick? Scroll through our gallery, check out the video, and then have your say in Comments.

2019 Buick LaCrosse Sport Touring isn't that sporty

The 2019 Buick LaCrosse Sport Touring is presumably a new, sportier version of Buick's large sedan. And on the surface, it does look more exciting. It has less chrome trim than its counterparts, the grille gets a body color surround and a black wire mesh insert. It has a simple little spoiler at the back, 19-inch wheels, and the all-important badging. We can't imagine Ford is thrilled at the use of the "ST" nomenclature on display at the back, though. Unfortunately, Buick hasn't really done anything to actually make this car sportier than other LaCrosse sedans. It has the same 3.6-liter V6 found in other versions making the same 310 horsepower and 268 pound-feet of torque. That power goes through the same nine-speed automatic as the others, too. Additionally, the Sport Touring is only available with front-wheel drive. Still, if you like the style, and the LaCrosse's standard performance is suitable to you, you'll want to know how much it costs. Base price is $41,220. You'll also have a choice of five colors: white, black, red, and two kinds of silver. And if the LaCrosse ST isn't sporty enough for you, you might want to check out the Regal GS. It has the same engine, but with a bit more torque, all-wheel drive, is in a smaller body, and has hatchback versatility. Related Video: Featured Gallery 2019 Buick LaCrosse Sport Touring Image Credit: Buick Buick Luxury Sedan

2020 Buick LaCrosse images leaked on Chinese website

Buick is planning a refreshed version of its LaCrosse full-size sedan for the Chinese market, judging by these photos discovered by the site Auto Verdict on a Chinese government site used to certify upcoming new models. We can only see exterior cosmetic changes, but they bring the LaCrosse more in line with the styling of the new Regal and Enclave models, leading to speculation that it won't be long until the changes show up in the U.S. The front three-quarters photo shows off a redesigned front fascia, with slimmed-down headlights that are now tied to the grille instead of set apart by body-color surround, thanks to some new chrome treatment. There's also a chrome wing on the grille, similar to what's seen on the 2019 Enclave and new Regal. The lower front fascia is also different, with new L-shaped fog lamps. On the rear, there's a new chrome wing connecting and intersecting the taillights and surrounding the badge. There's no word about any interior changes, but they'd likely be minor in keeping with the exterior updates. Buick most recently debuted a 2019 LaCrosse Sport Touring version, while a mild hybrid model arrived for 2018. China, of course, has become Buick's largest market, but the picture is less rosy stateside amid dimming prospects for sedans, as consumers flock to crossovers and SUVs. In the third quarter, U.S. sales of the LaCrosse fell 31.1 percent from the prior-year period. Between January and the end of September, GM had sold 13,409, which was a decline of 14.2 percent. Its full-year 2017 sales totaled 20,161, which was down almost 27 percent from 2016. For perspective, Buick sold more than twice that number — 42,035 — as recently as 2015. The current generation launched in 2017. Related Video: Featured Gallery 2020 Buick LaCrosse China Image Credit: Buick Design/Style Buick Luxury Sedan