At last it looks like the problem has been identified. I am taking the 147 to the dealers tomorrow morning, as the dreaded "VDC, ASR, Selespeed Failue" bug hit again on Tuesday.
I called the Service Manager and told me I can come in straight-away, but if I wanted a 156 Slespeed loan car, to wait till Friday!
I don't mind though. I truly believe that if I had bought any other brand, and had these types of problems, I would not have been as patient or understanding. Man, Alfa's really weave some magic spells over their drivers, don't they?