2009 Mercedes-Benz CLS-Class

The new CLS gets the same powertrain treatment as most other Mercedes-Benz sedans. It will be offered as the CLS550, with the 5.5-liter V-8 we've come to know and love, and as a powerful AMG model. The AMG designation is the CLS63, a car that will come with a big 6.3-liter V-8.