2017 Buick LaCrosse – Video
All LaCrosse variants are powered by the same 3.6-liter V-6 making 310 horsepower and 282 lb-ft of torque. The six’s output is well matched to the 3700-pound car, with the eight-speed automatic transaxle going about its business almost imperceptibly. Sometimes too much so, as there is no separate shift programming when in Sport mode, although changing gears via the standard steering-wheel-mounted paddles somewhat ameliorates this need. The V-6 design features direct injection, auto stop/start, and active fuel management, which lets the engine switch seamlessly into four-cylinder mode to save fuel. These improvements and a claimed 300-pound weight reduction from last year’s LaCrosse yield a 3-mpg improvement in the EPA combined estimate, which is now 25 mpg.