Rare 1956 Mercedes-Benz 300 SL Gullwing Sets Record at RM Sotheby’s Auction with $9.3M Sale RM Sotheby's One of the rarest and most iconic automobiles ever produced, the 1956 Mercedes-Benz 300 SL Gullwing, recently commanded a staggering $9,335,000 at a RM Sotheby’s auction. This particular Gullwing, chassis number 198.043.5500872, is one of…
