Ou melhor, diz assim:
"The most well-known Gran Turismo of Iso Rivolta was without doubt the Iso Grifo with berlinetta body by Bertone, first presented as a very sporty, low-slung prototype (Grifo A3C) in 1964. After Bizzarrini split out of the project, this prototype formed the basis for his own Bizzarini 5300 GT. The Grifo Prototype was further refined by Iso, receiving a reworked, less aggressive and more luxurious body in the process, and went into production in 1965. The Grifo was powered by Chevrolet´s 327 V-8 (5.4 L) in either 300 or 350 hp form. In 1966 a convertible version of the Grifo was shown that didn't manage to go into production. Starting in 1968 the Grifo could also be had with Chevrolet's 427 ci big-block V-8; this version was known as the Grifo 7 litri and was easily recognized by the broad air inlet on the hood. Later-day Grifos, the Series II, featured concealed headlights and a slightly modfied front area."