In my nightly perusing, I came across a cool site called Silodrome. They seem to have some really cool stuff about, as they call it, "Gasoline Culture".
Amongst those articles was a neat little write-up about the Urraco. Some cool insights and look at one of the non-V12 cars.
Take a look if you want to read more about the direct competitor to the Ferrari Dino.
Article Link Here