The S55 AMG has a perfect blend of comfort, styling and performance. I look forward to road trips in this car. It is incredible. It has tons of room, especially in the back. When I start the car with the keyless go, a cool option, the engine sound is incredible. The exhaust and supercharger emit a sound that lets the occupants know that there is plenty of power available when needed. The supercharger has a subtle and very cool whining sound that is downright stimulating. The active body control suspension is amazing and definitely adds a very connected and sporty but smooth feel to the ride. This is the ultimate sedan. Period.
AMG touches that include the engine/exhaust, dynamic ventilated/heated Napa leather seats, the monster AMG brake rotors and calipers, and the instrumentation w/200 mph speedo. The DVD navigation and sound system are great.
Better/more cup holders. Heated rear seats should be standard.