The fourth-generation Buick LaCrosse is a Sedan for drivers who want a quiet, composed daily car. It continues Buick's LaCrosse name with a comfort-first character rather than a sporty one.
The 2.0 i AT sedan is one Buick LaCrosse engine pairing in this generation: gasoline power, an automatic transmission, and a front-wheel-drive drivetrain. In everyday use that means you stay in Drive and let the gearbox shift, while power goes to the front wheels without extra driveline complexity.