Since it first appeared in 1963, the Porsche 911 has been subject to continual refinement and improvement, giving rise to a range of variants that are still being developed. All the models have retained the 911 "look" and the car has become a classic during its own production lifespan. This book tells the story of the evolution of the Porsche 911. It traces the development of the 911 in all its variants, detailing the bodies, interiors, engines, transmissions and suspensions. It also lists year-by-year changes, together with full technical and competition details.