The 2010 Malibu is a 4-door, 5-passenger family sedan, available in 4 trims, ranging from the LS to the LTZ. Upon introduction, the LS is equipped with a standard 2.4-liter, I4, 169-horsepower engine that achieves 22-mpg in the city and 30-mpg on the highway. A 4-speed automatic transmission with overdrive is standard. The LTZ is equipped with a standard 2.4-liter, I4, 169-horsepower engine that achieves 22-mpg in the city and 33-mpg on the highway. A 6-speed automatic transmission with overdrive is standard. The Malibu is a carryover from 2009.