2007 Mercedes-Benz S-Class Road Test Ratings

By any measure of performance, luxury, safety and sheer technological prowess, the new M-B flagship has set a new standard.

Ultra-refined powertrain. The power delivery is so smooth and linear that it almost seems as if the S550 is powered by a muscle-bound electric motor. The transmission's sport mode works best, as the shifts come right when you'd want them. Handling is excellent, almost nimble, making this big luxury sedan feel two-thirds its size.

Smooth, hushed ride, even at very high cruising speeds. Rear passengers enjoy limousine-like room and comfort.

Considering all the high-tech features on board, a fairly user-friendly layout. The COMAND controller is improved, and many controls are redundant. Frequently used climate control functions can be controlled by conventional dash buttons, steering wheel buttons or the COMAND knob. Adjusting the "Multi-Contour" power seats requires a bit more patience, but owners of the car should quickly acclimate. Night View Assist is amazing in its clarity, a definite asset while driving on dark rural roads.

Not crazy about the exaggerated wheel well arches, but fit and finish is superb. Cabin design and materials is classy and relatively clean, considering all the gizmos on board.