This book, BMW Automotive Technologies of which there's also a companion DVD by the same title, makes for an extensive work on what BMW has done in late model cars. Various new technologies are covered here. All the technical explanations are done using the latest in graphics to show the concepts, inner workings and operation. It is a must see for anyone interested in auto repair, automotive instructors, technicians or simply DIY aficionados. The information seen here will prepare you for either of two things, becoming a knowledgeable consumer or as a technician/mechanic get you acquainted with the technology to diagnose these vehicles. The first step in diagnostics is to always "know the system" you're working on. This book will certainly prepare you in learning the operation and finer points of the latest electronic systems and technologies. Often times, a specific mechanical system is completely driver by the electronics, such as the BMW VANOS variable valve timing. Well, if you don't know the system, you can't fix it, or you can't ask the proper questions when at the repair shop. This book will prepare you to ask the right questions from a consumer point of view or to also ask the right questions when diagnosing from a technician's point of view. Knowing the operation of these BMW systems is critical and will serve to save you time and money. Enjoy... (For further insight on the operation and testing of these components see our complimentary book & DVD-Videos to this series.)