The Saab Catherina was a 1964 prototype automobile designed by Sixten Sason and made by the Aktiebolaget Svenska Järnvägsverkstäderna (the Swedish Railroad Works - ASJ) in Arlöv, commissioned by Saab. It had two seats and a targa body style. Only one car was made although some of the design ideas later appeared in the Saab 99.  The car is on display in the SAAB museum in Trollhättan.