There is a huge mix in your reply, but the point is your.
It's actually a Kontra, made by SIVE in 1992.
However, no relation with Piaggio nor with the Gasolone (that was made by Effedi and was a competitor).
Also Iveco was not involved, because the engine was the Fiat Tipo 1.7 Diesel: the (very poor) brochure doesn't say anithing about any F1A or F1C Sofim engines, like on the Iveco.