It is a given that prototype automobiles tend to be rare. Such is the case of this 1964 Porsche 901 Cabriolet going up for auction in February at the RM Sotheby’s Auctions in Paris, France.
This is the prototype that ultimately evolved into the Porsche 911 Targa. There were only thirteen pre-production models made in 1963 and 1964 and al...
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