The 914 and 914-6 Porsche, A Restorer's Guide to Authenticity III takes a part-by-part, year-by-year approach to what an owner or prospective buyer should look for when evaluating a 914 Porsche. For each year, from 1970 through 1976, the author examines every change, documented or not, of each model - and now including major mechanical components. Included are the most accurate and comprehensive chassis number and color/upholstery listings anywhere. About author(s): Dr. Brett Johnson spent twelve years in the Porsche parts business and seven years practicing veterinary medicine. Now a writer, he has published several notable books on Porsches, including The 911 & 912 Porsche, a Restorer's Guide to Authenticity , and The 356 Porsche, A Restorer's Guide to Authenticity , which has sold over 45,000 copies worldwide and is now in its fourth edition. George Hussey is an internationally acknowledged Porsche 914 expert based in Marietta, Georgia.