Porsche 912 book - Buying Guide A quick, while comprehensive guide for all lovers of the Porsche 912, including buyers, restorers, mechanics and classic car appraisers. Early 912 1965-1969. Not 912E. A MUST-HAVE for every lover of the Porsche 912 and those who want to become one. A guide that takes the reader deep into the detailed variations of all model years to enable sound judgement of vehicle value and cost for repair and replacement of parts during restorations.