The 2009 5 Series is a 4-door, 5-passenger luxury sedan, luxury sports sedan, or luxury wagon, available in 6 trims, ranging from the 528i Sedan to the 550i Sedan.
Upon introduction, the 528i Sedan is equipped with a standard 3.0-liter, I6, 230-horsepower engine that achieves 18-mpg in the city and 28-mpg on the highway. A 6-speed manual transmission with overdrive is standard, and a 6-speed automatic transmission with overdrive is optional. The 550i Sedan is equipped with a standard 4.8-liter, V8, 360-horsepower engine that achieves 15-mpg in the city and 22-mpg on the highway. A 6-speed manual transmission with overdrive is standard, and a 6-speed automatic transmission with overdrive is optional.
[Source: BMW]