Mercedes-Benz strays from the norm with this sleek "four-door coupe." The CLS550 and high-performance CLS63 AMG blend the sexy lines of a sport coupe with the convenience of a luxury sedan.Sleek and sexy exterior design, handles like a smaller car, smooth and incredibly powerful V8 engines. , , Watch our Video at: http://www.youtube.com/watch?v=aLhFeb9MlYQ