1957 Porsche 356A Carrera Speedster GS/GT1957 Porsche 356A Carrera Speedster GS/GT (£900,000-1,000,000).Auction: Bonhams Goodwood Festival of Speed 2017© BonhamsHome » European » Britain » Goodwood » 2017 Bonhams Festival of Speed Sale (Porsches Announcement) » 1957 Porsche 356A Carrera Speedster GS/GT