Cars that drive over water. Cars that drive under water. Cars with transparent bodywork. The Concept Cars, which Frank M. Rinderknecht is developing, give a new meaning to mobility. They are the work of a person, who follows his own path without deviation, just as Carl F. Bucherer, the founder of the Luzern-based watch brand, once did. This was also one of the reasons prompting CEO Thomas Morf and vice-president Marketing Bruno Jufer to get involved as a partner of the Rinspeed sQuba.