The good folks over at Car Design World (aka 'cardesignworld' on social media) tipped us off to this independent design ...

SL): A Consolidation Of Mercedes-Benz's Iconic SL And Big Sports Coupe When Mercedes-Benz launched the W116 S-Class in 1972 to replace the aging W108 and W109 sedans, the company continued ...

Mercedes-Benz had three different platforms that utilized this engine base: Namely the 1978-1980 W116, 1981-1985 W126 S-Class sedans, as well as some of the 1978-1986 W123-platform cars.