The Autobianchi Runabout was designed by Marcello Gandini of Bertone and was shown at the 1969 Turin Motor Show. The car featured a mid-mounted Fiat 128 engine and gearbox. The wedge shape design took many styling cues from contemporary power-boat designs. And the distinctive headlamps were mounted on the rollover bar. The prototype was a serious proposal at the time and became the bases of the Fiat X1/9.
Sources: Carstyling.ru & Wikipedia