have you not heard of people drive their new alfas out the
showroom and 500m down the road, the car stalled? the electrical
failed.
I think you are talking about old Alfas. Current Alfas like the
new 159, Brera and Spider are all rather reliable compared to older
models like the 147 and 156.
Added: The new CEO that came from BMW saw to their improvement
in reliability. Though still not as reliable as more well
established marques.