Porsche 917 X17: The Cars and Drivers in Studio By Jeff Zwart. Hardcover with slip cover. 1st. Edition. /Forty years after its 1969 debut, racing fans still regard the Porsche 917 with awe as one the greatest sports cars ever built. In "Porsche 917 X 17: The Cars and Drivers in Studio", renowned automotive photographer and director Jeff Zwart follows up his award-winning book, "Porsche Rennsport", with exquisitely rendered images of 17 of the most beautiful and historic 917s. Brand new, never opened. US shipping only.