Four-cylinder and V-6 engines are available for the Liberty. A 150-horsepower, 2.4-liter Power Tech four-cylinder is standard in the Sport model. A 210-hp, 3.7-liter V-6 produces 235 pounds-feet of torque and comes standard in the Limited and Renegade models and optional in the Sport. Each engine teams with either a four-speed-automatic or five-speed-manual transmission and with one of two four-wheel-drive (4WD) systems — standard part-time Command-Trac or optional full-time Selec-Trac.