What is w221?

The W221 is a chassis code for the Mercedes-Benz S-Class, which is the flagship luxury sedan of the German automaker. The W221 generation of the S-Class was produced from 2005 to 2013 and was available in various models including the S350, S450, S500, S550, S600, S63 AMG, and S65 AMG.

The W221 S-Class featured a range of powerful and efficient engines, luxurious interior amenities, and advanced technology and safety features. Some of the notable features of the W221 S-Class include the AIRMATIC air suspension system, the COMAND infotainment system, adaptive cruise control, night vision assist, and a host of driver assistance systems.

Overall, the W221 S-Class was well-received for its combination of comfort, performance, and innovation, and helped to solidify Mercedes-Benz's reputation as a leader in the luxury automobile market.