The 2009 Mercedes-Benz SLK receives more available power and freshened styling. Like the larger, costlier SL-Class, SLKs have a power-folding hardtop. They come in three versions. The base SLK300 has a 228-hp 3.0-liter V6 engine. The mid-level SLK350 has a 300-hp 3.5-liter V6, which is a 32 hp bump over 2008 models. The top-end SLK55 AMG is tuned by Mercedes' AMG performance arm and has a 355-hp 5.4-liter V8. The 2009 SLK300 and SLK55 retain the same engines as the 2008 models. SLK300 offers a 6-speed manual or 7-speed automatic transmission. The other models have the automatic only. Available safety features include ABS, traction control, antiskid system, and front side airbags. Available features include voice activation for certain functions and wireless connectivity with all audio systems. MP3 players can be integrated into the car's audio system. We have not yet tested a 2009 Mercedes-Benz SLK.