HI
I have a 348 Speciale and a 308 GT4. (along with the X and the motorbikes)
The GT4 I do myself so no real costs there.
I am in the UK so all following in GBP.
The 348 costs about £1300 every 2 years for a full belt service and just an oil change in between. I do not do many miles in it say 5000 per year. It is an engine out service for the 348. Looking it up belts only is about half for a 360 therefore I would think not an engine out jobby. But I do not know somone above has already said it is so probably know better but I do not know why it is so cheap? (relatively)
A good place to start is
www.ferrarichat.com for info like this one.
John