Mercedes-Benz CLS

The CLS has a standard 4.6-liter, twin-turbo V8. An AMG version with a 5.5-liter delivers ferocious acceleration and a sound to match. The coupe-like styling results in a low roof, small windows, and reduced interior space that limits access, visibility, and rear-seat room. Handling is capable and surprisingly agile for such a large car. The ride is firm but supple and steady. Noise levels are hushed. Fit and finish is excellent, but the controls are complicated. A revised CLS arrives this winter with a new V6 turbo engine and nine-speed automatic.