The base-level S, mid-level SE and top-level SEL borrow their standard 2.5-liter 175-horsepower 4-cylinder engine from the Ford Escape, using an electrically-operated throttle control and variable cam timing to achieve a broad torque curve and increased fuel economy. The 3.0-liter V6 returns as an option in the SE and SEL, rated at 240 hp thanks to Ford's Cam Torque Actuated variable valve timing. The technology uses torsional energy rather than pressurized oil to phase the cams, allowing for a smaller oil pump and helping achieve an increase in power as a claimed bump in highway fuel economy. The 3.0-liter V6 is also capable of running on E85 ethanol blend fuel.
A Sport model is also available, which features a 263-horsepower 3.5-liter version of Ford's Duratec V6 previously available in the Lincoln MKZ-the Fusion's platform twin. The engine uses a compact and lightweight dual-overhead cam valvetrain for increased peak power and smooth operation, and despite a rather high 10.3:1 compression ratio, it does not require premium fuel like some of its competitors. The Sport also gets improved suspension and steering components, 18-inch wheels and unique styling cues inside and out.
