The Mercedes-Benz W180, also known as the Ponton, is a prominent mid-1950s luxury sedan series that includes models such as the 220a and 220S. Launched in 1954, it succeeded the W120/W121 models and introduced modern styling with improved aerodynamics and increased interior space. Across its generations from 1954 to 1959, the W180 featured incremental enhancements in size, comfort, and performance, including updated engines and chassis refinements. The W180 remains a classic example of Mercedes' post-war automotive excellence and an important reference point in midsize luxury car evolution.