What's the mercedes s550 length?

I really wish You were more specific, because the length of the Mercedes Benz S550 can vary quite a bit, even within model years. With different trims, length often comes in much differently. Take, for example, the latest model year of the S-Series S550 -- 2017. In this model year, the Cabriolet measured 198.6 inches in length. The S550 4Matic Coupe measured 197.9 inches. The three sedan models (the Plug-In Hybrid sedan, the 4Matic Sedan, and the regular Sedan) each measured 206.5 inches. These measurements vary little over different model years, so the other measurements of the Cabriolet, Coupe, and Sedan are all relatively the same going as far back as the S550 was produced.