The development from the four-seater 530 prototype to the 901 is one of the most exciting decades in Porsche history. Numerous previously unreleased original documents provide a detailed picture of concepts, designs, backgrounds and decisions. A central role is played by the Type 695, whose final design was finally built as a one-off and became the model for the Type 754. File notes, meeting minutes and memorandums document why the great Porsche failed and Ferry Porsche made a drastic cut and embarked on a completely new project: The T8, which soon receives the type number 901.