As a range-topper of the flagship S-Class line, the C126-series 500SEC was perhaps the finest luxury sports coupe to come out of West Germany in its day.
Kwiek Classics upgrade the powertrain in this 1983 Mercedes-Benz 500SEC (W126) at their company in Nashville, Tennessee. In the engine bay they swapped a supercharged 5.4 L M113K V8 from a 2003 Mercedes S55. It features a.