040 190SL 1955 1956 1957 1958 1959 1960 1961 1962 1963 The W121-040 chassis 190SL Roadster with the M121-921 motor was made between 1955 and 1961 (Hard top only). The W121-040 chassis 190SL Roadster with the M121-928 motor was made between 1962 and 1963 (Hard top only).

042 190SL 1955 1956 1957 1958 1959 1960 1961 1962 1963 The W121-042 chassis 190SL Roadster with the M121-921 motor was made between 1955 and 1961 (Soft top only). The W121-042 chassis 190SL Roadster with the M121-928 motor was made between 1962 and 1963 (Soft top only).