Porsche collectors in search of something unique may want to book a flight to Italy.
A custom 959 “Speedster” is set to go up for bid at RM Sotheby’s upcoming Milan. The high-tech speed machine, which was modified by Karl-Heinz Feustel, is the only example of its kind.
The 959 needs no introduction for Porsche enthusiasts, but for everyone else, it was the marque’s attempt to build a street-legal race car for the 1980s. The vehicle started out as the…

