1955 Mercedes-Benz 300 SL Gullwing Coupé 1955 Mercedes-Benz 300 SL Gullwing Coupé sold for €1,207,500 Auction: Bonhams Paris 2019 © Courtesy of Bonhams Home » European » 2019 Bonhams Paris Sale (Auction Results) » 1955 Mercedes-Benz 300 SL Gullwing Coupé