Porsche honors Swiss racer Jo Siffert with one-off 911 GT3 RS

The latest one-off Porsche 911 GT3 RS is a tribute to Jo Siffert Siffert was a Swiss racing driver that helped develop the Porsche 917 The buyer for the one-off 911 GT3 RS will be picked at random from interested parties Porsche has rolled out a special one-off version of its latest 911 GT3 RS as a tribute to driver Jo Siffert, a Swiss racing…