High Quality Content by WIKIPEDIA articles! The Saab Catherina is a 1964 prototype automobile, commissioned by the Swedish automaker Saab, designed by Sixten Sason and made at the workshops of the Aktiebolaget Svenska Järnvägsverkstäderna (ASJ - the Swedish Railroad Works) in Katrineholm, Sweden (hence the name). It is a red, two-seat sports car with a targa top.Sason, who was working as a freelancer for Saab, made some drawings of a small sports coupé in the early 1960s. As Saab was planning to introduce a sports car model, the company commissioned him to adopt the design for mass production. The project began in January 1963 and in May the assembly of the prototype started at the ASJ. The prototype was first displayed, however, only on 24 April 1965, at the Linköping Sports Centre.