The 2009 Mercedes SLK-Class is a 2-door, 2-passenger convertible sports car. Upon introduction, the SLK300 Roadster is equipped with a standard 3.0-liter, V6, 228-horsepower engine that achieves 17-mpg in the city and 26-mpg on the highway. A 6-speed manual transmission with overdrive is standard, and a 7-speed automatic transmission with overdrive is optional. The SLK55 AMG Roadster is equipped with a standard 5.4-liter, V8, 355-horsepower engine that achieves 14-mpg in the city and 22-mpg on the highway. A 7-speed automatic transmission with overdrive is standard.
