Competing in the midsize sedan segment, the 2013 Infiniti M56 Sedan is a direct competitor to the Mercedes-Benz E 550 Sport Sedan and the BMW 550i Sedan. With a single trim level, the 2013 Infiniti M56 Sedan carries an MSRP of $61,200. It offers a 5.6L V8 engine and a 7-speed automatic transmission, producing 420 horsepower and 417 lb-ft of torque. Through this powertrain, the Infiniti M56 Sedan manages a 0-60 of 5.2 seconds and a combined fuel economy of 19 MPG.