I'm pretty sure it's the car in the attached picture and as located at
https://www.classiccarcatalogue.com/SAVIO%201960.htmlThis says it's a FIAT 1500 Spider ... and from the 1960 Turin Motor show (not 1959). It must have been a styling exercise as the bodywork treatment around the lights is completely different to the standard 1500 Spider. But this is also probably where the mistaken identity for the Flaminia crept in as, from the angle in the originally referenced ebay item at least, there is some similarity.