Competing in the midsize sedan segment, the 2018 Buick LaCrosse Avenir Sedan is a direct competitor to the Lexus GS 350 Sedan. Meanwhile, the Cadillac CTS Sedan and the Lincoln MKZ Sedan, both come with less powerful base engines. With standalone trim, the LaCrosse Avenir carries an MSRP of $44,870. It is offered with a 3.6L V6 engine and a 9-speed automatic transmission, producing 310 horsepower and 268 lb-ft of torque. Through this powertrain, the LaCrosse Avenir manages a 0-60 of 5.6 seconds and a combined fuel economy of 24 MPG.