This book provides a comprehensive list of all build specification codes used by Porsche AG for the Porsche 911 series from model years 1989 to 2012. VIN, model type, country, exterior paint colour, interior colour combinations, material codes, and standard, special and Porsche Exclusive options for the 964, 993, 996 and 997 series are provided in detail.Option codes for other Porsche models built between 1978 and 2012 are also included if known to the author.This book will not only be of great value to current Porsche owners, but to potential Porsche purchasers as well. The buyer can use this handbook to confirm the accuracy of the seller's description by comparing the data in the book to what is advertised and what is actually installed, giving the buyer a much greater advantage. Information contained within the book will also help owners and buyers overcome problems caused by missing identification labels, and will free up time currently wasted trawling the internet for answers.