One of just three surviving Isotta Fraschini Tipo 8A S cars to be fitted with a Castagna 'boat tail' cabriolet body and with a long history in the limelight is coming up for auction next month when RM Sotheby’s hold its Amelia Island sale

The Isotta Fraschini powered luxury superboat XSR48 has triumphed over a string of highly regarded and innovative transportation designs to collect top honours in that category of the Condé Nast Traveller Innovation and Design Awards