1956 Mercedes-Benz 300SL Gullwing 1956 Mercedes-Benz 300SL Gullwing (Lot S137) at $1,567,500 Auction: Mecum Kissimmee 2021 © Mecum Home » USA » 2021 Mecum Kissimmee Sale (Auction Results) » 1956 Mercedes-Benz 300SL Gullwing