1955 Mercedes-Benz 300SL Gullwing Coupe Matching-Numbers 1955 Mercedes-Benz 300SL Gullwing Coupe Barrett-Jackson Scottsdale 2022 auction © Barrett-Jackson Home » USA » 2022 Barrett-Jackson Scottsdale Sale (300 SL Gullwing Announcement) » 1955 Mercedes-Benz 300SL Gullwing Coupe