The Mercedes-Benz W221 is the model designation for the automaker’s flagship luxury sedan, the S-Class. Produced from 2005 to 2013, the W221 S-Class is fully equipped with a litany of superior comfort, convenience, and safety features including infrared Night View Assist, a pre-collision system, Airmatic suspension, adaptive bi-xenon headlights and a Harman Kardon Logic 7 surround sound system.