Tucked away in a suburb of Stuttgart, this very old 1960s building is the secret place where the German sports car manufacturer Porsche stores its rare and highly valuable past. Acting as a storage space for the Porsche Museum, this facility houses more than just Porsches. It also keeps vehicles bearing other brands, like the Audi RS2 Avant, several Seats and Ladas, and even a concept family car from China. In part one of “Porsche Secrets,” we are shown the very first 911 Turbo which belonged to Louise Porsche Pieche, the daughter of Ferdinand Porsche. In part two we are shown some special editions contained within the collection, including a prototype 928 and a bulletproof 911.