2017 Buick LaCrosse Performance and Design – Video
The 2017 Buick LaCrosse uses GM’s new 3649-cc V-6, which also appears in the CTS and the Camaro, among other applications. For LaCrosse duty, the engine will produce about 305 horsepower and 268 lb-ft of torque (final numbers aren’t yet blessed by the SAE). That’s just barely more than what the old 3.6-liter V-6 in the previous LaCrosse mustered, but this V-6 will have less weight to contend with. It also pairs with a new eight-speed automatic (controlled by a funky new by-wire setup called Electronic Precision Shift) and comes standard with auto stop-start. All of that should aid the cause of fuel economy, although EPA figures are not yet available.