The beginning of the collaboration between Zagato and Lamborghini dates back to 1965, when the Milanese brand conceived two exemplars of the Lamborghini 3500 GTZ on the mechanical basis of the 350 GT. During an official meeting in Sant'Agata Bolognese with Ing. Stanzani - body division - and Ing. Dallara - technical division - Elio Zagato, first son of founder Ugo, proposed the construction of a 350 GT with a unique body for Marquis Gerino Gerini, former F1 pilot.
The 3500 GTZ was officially introduced at the 1965 London Motor show. Zagato received a shortened chassis and dressed it with a light aluminum body with surfaces and volumes adopting the typical Zagato cut-tail: a solution that originated from the philosophy at that time for racing cars with a Zagato body and transferred with success to a more comfortable and well refined Gran Tourism car. Some weeks after, Zagato received a new order from Dani Gambirasi, cousin of Giuseppe Pesenti, at that time Head of Lancia.