Buick is hoping to attract new buyers and loyal traditionalists with a sleeker, better-performing and quieter 2017 LaCrosse debuting Wednesday at the Los Angeles Auto Show.

The new 2017 LaCrosse, available in early summer 2016 and built in Detroit, is first to wear the new face of Buick that includes a darkened grille design and a tri-color (red, silver and blue) shield accented by wings that gives it a sportier-looking front. The grille was influenced by the Buick Avenir concept, which won high accolades in January at the North American International Auto Show in Detroit.

The latest LaCrosse receives a new 3.6-liter V-6 engine with stop-start technology to save fuel in stop-and-go driving. It’s paired to an eight-speed automatic transmission that delivers motion through a twin-clutch all-wheel drive system.

The redesign of Buick’s flagship cars comes amid sluggish sedan sales, as buyers continue to gravitate toward SUVs and trucks. The LaCrosse will compete with vehicles such as the Lexus ES 350, Toyota Avalon, Nissan Maxima, Chrysler 300 and Lincoln MKZ.

“Technology and driving dynamics may need to be a key focal point for the LaCrosse to succeed,” Akshay Anand, analyst at Kelley Blue Book, said.

LaCrosse sales are down 14.1 percent this year through October to 35,526 sold. All Buick sedan sales have dropped by double-digit percentages this year.

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Nick Richards, Buick communications manager, shows the completely redesigned Buick LaCrosse – longer, lower and lighter than the current model, featuring the new Buick grille and stop-start technology. It will go on sale in the summer of 2016.