Recognized by Porsche enthusiasts, concours judges, even the Porsche factory as a definitive guide to Porsche authenticity. Get a detailed look at the year-to-year changes in body, chassis, trim, and interior components. Virtually every part is described and photographed allowing owner and restorer to determine originality. Revised and updated 3rd ed. Softbound: 8 1/2x 11, 154 pgs., 627 B&W ill.