Unic Zeus, shown at the 2001 Barcelona motorshow. The engine was the Lombardini FOCS, twin cylinder diesel, 505 cc, also used on countless french and italian microcars. It seems that it was built in small numbers from 2004.
The company "Fabrica de Automocion Unic S.L." was based in La Pobla de Claramunt, and made also the small SUV Gacela (show here in another puzzle) and the Ardilla. It went bankrupt (surprising, isn't it ?
) since...