2369 examples of the W109-015 chassis 300SEL Sedan with the M189-988 motor were made between 1965 and 1967.
2519 examples of the W109-016 chassis 300SEL /8 Sedan with the M130-981 motor were made between 1968 and 1970.
6526 examples of the W109-018 chassis 300SEL 6.3 Sedan with the M100-981 motor were made between 1968 and 1972.
9583 examples of the W109-056 chassis 300SEL 3.5 Sedan with the M116-981 motor were made between 1969 and 1972.
2553 examples of the W109-057 chassis 300SEL 4.5 Sedan with the M117-981 motor were made between 1971 and 1972.
A custome 6.3L Pininfarina one off made for a Dutch businessman.
Details at https://drive-my.com/en/test-drive/item/1769-mercedes-benz-300-sel-6-3-pininfarina-coupe.html.